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[AtCoder]ABC-126|B - YYMM or MMYY
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提出結果
def getString():
return input()
def isM(x):
return 1 <= x <= 12
def main():
s = getString()
a = int(s[:2])
b = int(s[2:])
if isM(a) and isM(b):
print('AMBIGUOUS')
elif isM(a):
print('MMYY')
elif isM(b):
print('YYMM')
else:
print('NA')
if __name__ == "__main__":
main()
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