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 ```def rotate(state, pipe_numbers): ``` ``` count = [] ``` ``` for i in range(len(state)): ``` ``` last = state.pop() ``` ``` state.insert(0, last) ``` ``` is_good = True ``` ``` for j in pipe_numbers: ``` ``` if state[j] != 1: ``` ``` is_good = False ``` ``` break ``` ``` if is_good: ``` ``` if i+1 >= len(state): ``` ``` count.append(0) ``` ``` else: ``` ``` count.append(i+1) ``` ``` count.sort() ``` ``` print(count) ``` ``` return count ``` ``` ``` ``` ``` ```if __name__ == '__main__': ``` ``` # These "asserts" using only for self-checking and not necessary for auto-testing ``` ``` assert rotate([1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1], [0, 1]) == [1, 8], "Example" ``` ``` assert rotate([1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1], [0, 1, 2]) == [], "Mission impossible" ``` ``` assert rotate([1, 0, 0, 0, 1, 1, 0, 1], [0, 4, 5]) == [0], "Don't touch it" ``` ``` assert rotate([1, 0, 0, 0, 1, 1, 0, 1], [5, 4, 5]) == [0, 5], "Two cannonballs in the same pipe" ```