diff --git a/input/5.txt b/input/5.txt
new file mode 100644
index 0000000..802f66b
--- /dev/null
+++ b/input/5.txt
@@ -0,0 +1,513 @@
+        [M]     [B]             [N]
+[T]     [H]     [V] [Q]         [H]
+[Q]     [N]     [H] [W] [T]     [Q]
+[V]     [P] [F] [Q] [P] [C]     [R]
+[C]     [D] [T] [N] [N] [L] [S] [J]
+[D] [V] [W] [R] [M] [G] [R] [N] [D]
+[S] [F] [Q] [Q] [F] [F] [F] [Z] [S]
+[N] [M] [F] [D] [R] [C] [W] [T] [M]
+ 1   2   3   4   5   6   7   8   9 
+
+move 1 from 8 to 7
+move 1 from 2 to 7
+move 6 from 9 to 8
+move 1 from 9 to 1
+move 1 from 9 to 1
+move 3 from 3 to 6
+move 3 from 3 to 9
+move 1 from 9 to 2
+move 5 from 7 to 9
+move 9 from 1 to 6
+move 3 from 4 to 9
+move 2 from 9 to 2
+move 1 from 4 to 2
+move 1 from 3 to 9
+move 8 from 9 to 4
+move 14 from 6 to 7
+move 1 from 3 to 2
+move 5 from 4 to 2
+move 5 from 5 to 7
+move 4 from 2 to 1
+move 2 from 4 to 9
+move 1 from 4 to 3
+move 3 from 5 to 7
+move 1 from 8 to 6
+move 2 from 8 to 7
+move 2 from 1 to 2
+move 1 from 9 to 7
+move 2 from 1 to 3
+move 5 from 6 to 5
+move 4 from 5 to 7
+move 3 from 8 to 4
+move 20 from 7 to 1
+move 11 from 7 to 5
+move 1 from 6 to 9
+move 3 from 9 to 2
+move 12 from 1 to 9
+move 2 from 8 to 3
+move 4 from 2 to 8
+move 8 from 2 to 1
+move 4 from 8 to 9
+move 1 from 2 to 5
+move 12 from 9 to 7
+move 4 from 4 to 9
+move 4 from 9 to 5
+move 13 from 5 to 4
+move 4 from 4 to 7
+move 1 from 7 to 9
+move 2 from 9 to 5
+move 9 from 1 to 2
+move 1 from 8 to 3
+move 5 from 4 to 2
+move 1 from 3 to 6
+move 7 from 2 to 8
+move 6 from 1 to 6
+move 6 from 8 to 7
+move 6 from 2 to 1
+move 3 from 9 to 3
+move 7 from 3 to 7
+move 4 from 4 to 9
+move 1 from 8 to 9
+move 1 from 3 to 9
+move 1 from 2 to 4
+move 1 from 9 to 6
+move 5 from 1 to 9
+move 1 from 4 to 9
+move 2 from 9 to 1
+move 8 from 6 to 7
+move 4 from 9 to 7
+move 2 from 5 to 2
+move 2 from 1 to 9
+move 14 from 7 to 4
+move 22 from 7 to 2
+move 2 from 7 to 4
+move 3 from 7 to 5
+move 9 from 4 to 7
+move 6 from 2 to 4
+move 8 from 4 to 3
+move 14 from 2 to 9
+move 2 from 3 to 9
+move 3 from 2 to 9
+move 4 from 4 to 2
+move 1 from 4 to 5
+move 1 from 1 to 4
+move 5 from 7 to 8
+move 1 from 1 to 3
+move 4 from 5 to 2
+move 6 from 3 to 9
+move 1 from 3 to 4
+move 4 from 8 to 9
+move 2 from 4 to 6
+move 4 from 5 to 3
+move 1 from 7 to 6
+move 1 from 8 to 5
+move 3 from 3 to 1
+move 33 from 9 to 5
+move 5 from 2 to 1
+move 1 from 3 to 5
+move 1 from 7 to 6
+move 18 from 5 to 1
+move 1 from 2 to 8
+move 6 from 5 to 4
+move 1 from 8 to 7
+move 2 from 4 to 1
+move 4 from 1 to 2
+move 19 from 1 to 2
+move 4 from 6 to 8
+move 4 from 1 to 8
+move 14 from 2 to 9
+move 5 from 2 to 4
+move 1 from 8 to 2
+move 8 from 2 to 5
+move 5 from 8 to 4
+move 4 from 9 to 7
+move 1 from 8 to 1
+move 16 from 5 to 4
+move 15 from 4 to 5
+move 1 from 9 to 5
+move 5 from 7 to 6
+move 2 from 7 to 6
+move 1 from 1 to 9
+move 7 from 6 to 7
+move 1 from 8 to 5
+move 1 from 1 to 9
+move 12 from 5 to 7
+move 7 from 5 to 9
+move 12 from 7 to 2
+move 1 from 7 to 4
+move 7 from 4 to 7
+move 2 from 9 to 4
+move 5 from 4 to 9
+move 8 from 2 to 3
+move 4 from 2 to 4
+move 9 from 4 to 8
+move 6 from 3 to 5
+move 8 from 7 to 3
+move 1 from 4 to 3
+move 7 from 8 to 9
+move 4 from 5 to 4
+move 6 from 3 to 1
+move 4 from 3 to 4
+move 1 from 3 to 6
+move 6 from 4 to 9
+move 1 from 6 to 5
+move 17 from 9 to 4
+move 3 from 7 to 3
+move 1 from 7 to 9
+move 2 from 5 to 3
+move 2 from 1 to 3
+move 2 from 8 to 9
+move 1 from 5 to 1
+move 14 from 4 to 5
+move 2 from 3 to 2
+move 1 from 7 to 6
+move 10 from 9 to 4
+move 12 from 9 to 4
+move 9 from 4 to 5
+move 1 from 2 to 9
+move 13 from 5 to 9
+move 2 from 5 to 1
+move 1 from 2 to 9
+move 3 from 4 to 2
+move 12 from 4 to 7
+move 8 from 5 to 7
+move 1 from 1 to 9
+move 1 from 6 to 4
+move 1 from 5 to 4
+move 1 from 4 to 8
+move 5 from 3 to 4
+move 10 from 9 to 6
+move 3 from 6 to 2
+move 7 from 6 to 5
+move 6 from 5 to 4
+move 1 from 8 to 5
+move 1 from 1 to 4
+move 2 from 7 to 2
+move 5 from 4 to 9
+move 2 from 5 to 8
+move 1 from 1 to 3
+move 2 from 1 to 7
+move 6 from 7 to 9
+move 9 from 9 to 8
+move 1 from 1 to 3
+move 4 from 2 to 7
+move 11 from 7 to 3
+move 11 from 8 to 6
+move 7 from 3 to 1
+move 4 from 7 to 2
+move 3 from 2 to 9
+move 8 from 1 to 5
+move 2 from 7 to 5
+move 2 from 2 to 9
+move 2 from 3 to 9
+move 11 from 4 to 7
+move 7 from 9 to 5
+move 6 from 6 to 5
+move 2 from 2 to 9
+move 1 from 2 to 3
+move 6 from 9 to 4
+move 3 from 9 to 1
+move 4 from 3 to 5
+move 6 from 7 to 1
+move 2 from 6 to 3
+move 2 from 9 to 2
+move 3 from 3 to 2
+move 3 from 6 to 8
+move 2 from 7 to 5
+move 20 from 5 to 6
+move 8 from 5 to 1
+move 1 from 5 to 9
+move 2 from 8 to 4
+move 1 from 8 to 7
+move 16 from 1 to 8
+move 8 from 8 to 9
+move 4 from 2 to 4
+move 1 from 1 to 5
+move 1 from 5 to 4
+move 3 from 8 to 4
+move 14 from 4 to 6
+move 5 from 8 to 7
+move 6 from 7 to 8
+move 29 from 6 to 2
+move 3 from 9 to 8
+move 21 from 2 to 3
+move 1 from 8 to 3
+move 6 from 9 to 4
+move 8 from 3 to 5
+move 7 from 8 to 4
+move 7 from 3 to 9
+move 3 from 7 to 2
+move 12 from 4 to 8
+move 2 from 3 to 1
+move 2 from 9 to 1
+move 1 from 6 to 7
+move 1 from 7 to 6
+move 1 from 6 to 3
+move 3 from 1 to 8
+move 2 from 4 to 1
+move 4 from 6 to 1
+move 5 from 2 to 7
+move 1 from 1 to 2
+move 5 from 1 to 2
+move 2 from 8 to 1
+move 1 from 4 to 5
+move 9 from 8 to 4
+move 3 from 7 to 9
+move 7 from 5 to 7
+move 2 from 5 to 9
+move 4 from 9 to 2
+move 3 from 3 to 2
+move 5 from 2 to 7
+move 2 from 8 to 2
+move 2 from 7 to 3
+move 1 from 8 to 6
+move 2 from 1 to 2
+move 1 from 6 to 7
+move 1 from 8 to 1
+move 12 from 7 to 1
+move 5 from 2 to 7
+move 7 from 4 to 2
+move 2 from 4 to 1
+move 5 from 3 to 8
+move 7 from 1 to 9
+move 4 from 7 to 1
+move 7 from 1 to 5
+move 12 from 9 to 2
+move 27 from 2 to 4
+move 3 from 8 to 9
+move 6 from 2 to 5
+move 6 from 1 to 8
+move 1 from 7 to 6
+move 9 from 5 to 2
+move 3 from 9 to 2
+move 13 from 4 to 5
+move 10 from 2 to 7
+move 1 from 9 to 8
+move 11 from 5 to 7
+move 1 from 8 to 7
+move 1 from 2 to 6
+move 13 from 4 to 3
+move 23 from 7 to 4
+move 1 from 6 to 9
+move 1 from 2 to 4
+move 7 from 3 to 5
+move 1 from 9 to 8
+move 19 from 4 to 1
+move 2 from 4 to 1
+move 1 from 7 to 6
+move 1 from 4 to 5
+move 1 from 5 to 7
+move 11 from 5 to 1
+move 2 from 5 to 4
+move 2 from 6 to 9
+move 3 from 8 to 2
+move 2 from 8 to 1
+move 3 from 2 to 1
+move 1 from 9 to 5
+move 6 from 1 to 3
+move 1 from 9 to 7
+move 2 from 7 to 5
+move 2 from 8 to 6
+move 1 from 3 to 2
+move 2 from 8 to 5
+move 1 from 2 to 1
+move 3 from 4 to 1
+move 3 from 5 to 1
+move 2 from 5 to 1
+move 2 from 6 to 9
+move 1 from 9 to 6
+move 1 from 4 to 5
+move 1 from 9 to 8
+move 1 from 8 to 6
+move 8 from 1 to 6
+move 7 from 1 to 8
+move 9 from 1 to 6
+move 1 from 5 to 3
+move 3 from 8 to 4
+move 11 from 3 to 4
+move 1 from 3 to 6
+move 10 from 6 to 8
+move 13 from 1 to 6
+move 3 from 4 to 5
+move 7 from 8 to 6
+move 3 from 8 to 5
+move 6 from 5 to 3
+move 22 from 6 to 9
+move 4 from 3 to 6
+move 4 from 9 to 5
+move 1 from 1 to 5
+move 2 from 3 to 4
+move 2 from 1 to 5
+move 1 from 9 to 2
+move 5 from 8 to 3
+move 2 from 9 to 2
+move 11 from 6 to 9
+move 3 from 2 to 7
+move 1 from 6 to 7
+move 12 from 9 to 8
+move 4 from 7 to 1
+move 12 from 4 to 8
+move 2 from 4 to 7
+move 1 from 1 to 8
+move 1 from 5 to 1
+move 19 from 8 to 4
+move 4 from 5 to 1
+move 1 from 7 to 4
+move 1 from 7 to 1
+move 3 from 3 to 4
+move 2 from 8 to 4
+move 1 from 5 to 7
+move 1 from 7 to 9
+move 8 from 1 to 8
+move 1 from 1 to 4
+move 1 from 3 to 9
+move 1 from 3 to 5
+move 1 from 5 to 2
+move 7 from 8 to 7
+move 16 from 4 to 7
+move 1 from 7 to 4
+move 3 from 8 to 2
+move 14 from 7 to 4
+move 1 from 5 to 8
+move 5 from 7 to 5
+move 16 from 4 to 5
+move 3 from 5 to 4
+move 3 from 2 to 1
+move 1 from 7 to 9
+move 11 from 4 to 2
+move 3 from 8 to 6
+move 2 from 1 to 8
+move 1 from 4 to 9
+move 18 from 5 to 1
+move 1 from 8 to 7
+move 3 from 7 to 9
+move 18 from 9 to 3
+move 3 from 6 to 9
+move 7 from 1 to 6
+move 1 from 8 to 4
+move 1 from 4 to 9
+move 3 from 6 to 4
+move 5 from 9 to 2
+move 2 from 4 to 7
+move 7 from 2 to 8
+move 1 from 7 to 3
+move 2 from 6 to 8
+move 1 from 9 to 5
+move 1 from 6 to 8
+move 1 from 4 to 8
+move 1 from 5 to 3
+move 1 from 7 to 5
+move 8 from 8 to 7
+move 10 from 2 to 6
+move 1 from 9 to 3
+move 6 from 6 to 2
+move 5 from 6 to 2
+move 7 from 2 to 7
+move 12 from 1 to 6
+move 2 from 2 to 1
+move 1 from 2 to 5
+move 4 from 7 to 6
+move 12 from 3 to 1
+move 2 from 7 to 2
+move 9 from 3 to 8
+move 1 from 2 to 6
+move 1 from 5 to 4
+move 9 from 6 to 5
+move 1 from 7 to 6
+move 1 from 4 to 9
+move 9 from 6 to 7
+move 7 from 8 to 3
+move 6 from 3 to 1
+move 4 from 8 to 3
+move 5 from 3 to 1
+move 1 from 9 to 8
+move 2 from 8 to 9
+move 5 from 5 to 7
+move 14 from 7 to 8
+move 1 from 9 to 4
+move 2 from 2 to 1
+move 3 from 5 to 3
+move 2 from 3 to 1
+move 1 from 4 to 6
+move 6 from 8 to 6
+move 6 from 8 to 3
+move 3 from 6 to 1
+move 2 from 8 to 9
+move 19 from 1 to 6
+move 3 from 9 to 3
+move 6 from 3 to 4
+move 6 from 6 to 2
+move 4 from 3 to 9
+move 1 from 7 to 9
+move 2 from 5 to 7
+move 5 from 9 to 6
+move 6 from 7 to 2
+move 11 from 2 to 5
+move 2 from 7 to 4
+move 4 from 4 to 3
+move 2 from 4 to 8
+move 12 from 1 to 2
+move 1 from 8 to 2
+move 8 from 5 to 7
+move 2 from 4 to 9
+move 2 from 7 to 1
+move 4 from 2 to 3
+move 1 from 8 to 6
+move 1 from 1 to 5
+move 2 from 9 to 1
+move 2 from 7 to 3
+move 2 from 5 to 2
+move 1 from 5 to 7
+move 2 from 7 to 8
+move 1 from 5 to 7
+move 5 from 3 to 4
+move 3 from 1 to 7
+move 1 from 2 to 4
+move 15 from 6 to 1
+move 4 from 4 to 1
+move 4 from 2 to 3
+move 8 from 3 to 2
+move 5 from 2 to 4
+move 1 from 8 to 6
+move 1 from 8 to 9
+move 1 from 3 to 1
+move 3 from 7 to 3
+move 5 from 7 to 6
+move 4 from 2 to 9
+move 6 from 2 to 6
+move 4 from 9 to 6
+move 12 from 1 to 5
+move 6 from 4 to 1
+move 1 from 3 to 6
+move 4 from 5 to 8
+move 7 from 5 to 3
+move 3 from 8 to 2
+move 1 from 2 to 3
+move 1 from 9 to 5
+move 1 from 4 to 5
+move 1 from 8 to 5
+move 8 from 6 to 9
+move 10 from 1 to 4
+move 3 from 6 to 1
+move 9 from 3 to 6
+move 1 from 3 to 8
+move 1 from 2 to 4
+move 6 from 9 to 1
+move 1 from 1 to 4
+move 10 from 1 to 6
+move 1 from 8 to 6
+move 13 from 6 to 7
+move 1 from 2 to 1
+move 1 from 9 to 6
+move 9 from 7 to 5
+move 1 from 9 to 4
+move 3 from 7 to 1
+move 3 from 5 to 6
+move 10 from 4 to 7
+move 5 from 6 to 5
+move 3 from 4 to 5
+move 13 from 6 to 9
+move 7 from 5 to 3
+move 6 from 3 to 2
+move 5 from 6 to 4
+move 4 from 2 to 8
diff --git a/src/s5a.d b/src/s5a.d
new file mode 100644
index 0000000..4642e73
--- /dev/null
+++ b/src/s5a.d
@@ -0,0 +1,43 @@
+module s5a;
+import util;
+
+void main() {
+    string[] fileContent = readText("input/5.txt").splitter("\n\n").array;
+    string stackContent = fileContent[0];
+    char[][] stacks = readStacks(stackContent);
+
+    string instructionContent = fileContent[1].strip;
+    uint count, origin, dest;
+    foreach (instruction; instructionContent.splitter("\n")) {
+        formattedRead(instruction, "move %d from %d to %d", count, origin, dest);
+        for (int i = 0; i < count; i++) {
+            stacks[dest-1] ~= stacks[origin - 1][$ - 1];
+            stacks[origin-1] = stacks[origin - 1][0 .. $ - 1];
+        }
+    }
+    writeln(stacks.map!(s => s[$ - 1]).array);
+}
+
+char[][] readStacks(string content) {
+    char[][] stackArray = content.splitter("\n").array.to!(char[][]);
+    ulong width = stackArray[0].length;
+    ulong height = stackArray.length;
+    char[][] rotatedStackArray;
+    rotatedStackArray.length = width;
+    for (int y = 0; y < height; y++) {
+        for (int x = 0; x < width; x++) {
+            if (rotatedStackArray[x].length == 0) rotatedStackArray[x].length = height;
+            rotatedStackArray[x][y] = stackArray[y][x];
+        }
+    }
+    for (int x = 0; x < rotatedStackArray.length; x++) {
+        rotatedStackArray[x].reverse;
+    }
+    char[][] stacks;
+    foreach (row; rotatedStackArray) {
+        if (row.strip.length > 0 && row.strip[0].isNumber) {
+            stacks ~= row.strip[1..$];
+        }
+    }
+    return stacks;
+}
diff --git a/src/s5b.d b/src/s5b.d
new file mode 100644
index 0000000..35b59c4
--- /dev/null
+++ b/src/s5b.d
@@ -0,0 +1,41 @@
+module s5a;
+import util;
+
+void main() {
+    string[] fileContent = readText("input/5.txt").splitter("\n\n").array;
+    string stackContent = fileContent[0];
+    char[][] stacks = readStacks(stackContent);
+
+    string instructionContent = fileContent[1].strip;
+    uint count, origin, dest;
+    foreach (instruction; instructionContent.splitter("\n")) {
+        formattedRead(instruction, "move %d from %d to %d", count, origin, dest);
+        stacks[dest - 1] ~= stacks[origin - 1][$ - count .. $];
+        stacks[origin - 1] = stacks[origin - 1][0 .. $ - count];
+    }
+    writeln(stacks.map!(s => s[$ - 1]).array);
+}
+
+char[][] readStacks(string content) {
+    char[][] stackArray = content.splitter("\n").array.to!(char[][]);
+    ulong width = stackArray[0].length;
+    ulong height = stackArray.length;
+    char[][] rotatedStackArray;
+    rotatedStackArray.length = width;
+    for (int y = 0; y < height; y++) {
+        for (int x = 0; x < width; x++) {
+            if (rotatedStackArray[x].length == 0) rotatedStackArray[x].length = height;
+            rotatedStackArray[x][y] = stackArray[y][x];
+        }
+    }
+    for (int x = 0; x < rotatedStackArray.length; x++) {
+        rotatedStackArray[x].reverse;
+    }
+    char[][] stacks;
+    foreach (row; rotatedStackArray) {
+        if (row.strip.length > 0 && row.strip[0].isNumber) {
+            stacks ~= row.strip[1..$];
+        }
+    }
+    return stacks;
+}