def solve(S, string1, string2): n = len(S) len1 = len(string1) len2 = len(string2) dp1 = [0] * n # good dp2 = [0] * n # problem dp1[len1-1] = len1 dp2[n-len2+1] = len2 for tail in range(len1, n-len2 + 1): dist = len([1 for c1, c2 in zip(string1, S[tail - len1:tail]) if c1 != c2]) dp1[tail] = min(dp1[tail - 1], dist) if not dp1[tail]: break for head in range(n-len2, len1 - 1, -1): dist = len([1 for c1, c2 in zip(string2, S[head:head + len2]) if c1 != c2]) dp2[head] = min(dp2[head + 1], dist) if not dp2[head]: break dp3 = [0] * n # number of string2 in S[:i-len1] for i in range(len1 + len2, n - len2 + 1): if string2 == S[i-len1-len2:i-len1]: dp3[i] = dp3[i-1] + 1 else: dp3[i] = dp3[i-1] return min(dp1[i] + dp2[i] + dp3[i] for i in range(len1, n - len2 + 1)) T = int(input()) for t in range(T): print(solve(input(), 'good', 'problem'))