[Python] ABC017 B

2019/12/22 プログラミング

問題

B – choku語

回答

X = input()

while X:
    if len(X)>=2 and X[-2:] == 'ch':
        X = X[:-2]
    elif X[-1:] == 'o' or X[-1:] == 'k' or X[-1:] == 'u':
        X = X[:-1]
    else:
        print('NO')
        break
else:
    print('YES')