45 lines
655 B
Python
45 lines
655 B
Python
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def problem_p01811(input_data):
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#!/usr/bin/python
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if __name__ == "__main__":
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S = input_data
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c = ["A", "B", "C"]
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while True:
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if len(S) <= 3:
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return "Yes" if S == "ABC" else "No"
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break
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T = S.strip().split("ABC")
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if len(T) == 1:
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return "No"
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break
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P = "".join(T)
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cnt = 0
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for x in c:
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if x in P:
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cnt += 1
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else:
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S = x.join(T)
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if cnt != 2:
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return "No"
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break
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