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Author: Vitosh

PythonTries/1835_05_SnakeMoves.py

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+def main():
+    first_line = input().split(" ")
+    rows = int(first_line[0])
+    columns = int(first_line[1])
+
+    snake = list(input())
+    snake_size = len(snake)
+    matrix = [[None for c in range(columns)] for r in range(rows)]
+    current_position = 0
+    is_reversed = True
+
+    for r in range(rows):
+        is_reversed = not is_reversed
+        for c in range(columns):
+            matrix[r][c] = snake[current_position % snake_size]
+            current_position += 1
+        if is_reversed:
+            matrix[r].reverse()
+
+    print(format_matrix(matrix))
+    
+
+def format_matrix(my_matrix):
+    return '\n'.join(''.join(str(column) for column in row) for row in my_matrix)
+
+if __name__ == "__main__":
+    main()