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#!/usr/bin/env python3
counts = {
'red': 0,
'blue': 0,
'black': 0,
}
sequences = {
'red': [ 'c', 'b', 'a', 'ac', 'b', 'ac', 'abc', 'ab', 'b' ],
'blue': [ 'b', 'ac', 'b', 'a', 'b', 'bc', 'c', 'ac', 'a' ],
'black': [ 'abc', 'ac', 'b', 'ac', 'b', 'bc', 'ab', 'c', 'c' ],
}
last = None
while True:
s = input()
if s == 'u' and last is not None:
counts[last] -= 1
else:
color = {
'r': 'red',
'b': 'blue',
'z': 'black',
}.get(s[0])
count = counts[color]
sequence = sequences[color]
print("cut" if s[1] in sequence[count] else "DON'T cut")
counts[color] += 1
last = color
|
