import std.conv, std.stdio, std.string; import std.algorithm, std.array, std.bigint, std.container, std.math, std.range, std.regex, std.typecons; import core.bitop; class EOFException : Throwable { this() { super("EOF"); } } string[] tokens; string readToken() { for (; tokens.empty; ) { if (stdin.eof) { throw new EOFException; } tokens = readln.split; } auto token = tokens.front; tokens.popFront; return token; } int readInt() { return readToken().to!int; } long readLong() { return readToken().to!long; } real readReal() { return readToken().to!real; } void chmin(T)(ref T t, in T f) { if (t > f) t = f; } void chmax(T)(ref T t, in T f) { if (t < f) t = f; } int binarySearch(T)(in T[] as, in bool delegate(T) test) { int low = -1, upp = cast(int)(as.length); for (; low + 1 < upp; ) { int mid = (low + upp) >> 1; (test(as[mid]) ? low : upp) = mid; } return upp; } int lowerBound(T)(in T[] as, in T val) { return as.binarySearch((T a) => (a < val)); } int upperBound(T)(in T[] as, in T val) { return as.binarySearch((T a) => (a <= val)); } immutable INF = 10^^9; int getCost(in string a, in string b) { assert(a.length == b.length); const len = cast(int)(a.length); int ret; foreach (i; 0 .. len) { if (a[i] != b[i]) { ++ret; } } return ret; } int N; string S; void main() { try { for (; ; ) { const numCases = readInt(); foreach (caseId; 0 .. numCases) { S = readToken(); N = cast(int)(S.length); auto headCount = new int[N + 1]; foreach (i; 0 .. N) { headCount[i + 1] = headCount[i]; if (i + 1 - 7 >= 0) { if (S[i + 1 - 7 .. i + 1] == "problem") { ++headCount[i + 1]; } } } auto tailCost = new int[N + 1]; tailCost[N] = INF; foreach_reverse (i; 0 .. N) { tailCost[i] = tailCost[i + 1]; if (i + 7 <= N) { chmin(tailCost[i], getCost(S[i .. i + 7], "problem")); } } int ans = INF; foreach (i; 0 .. N) { if (i + 4 <= N) { int cost; cost += getCost(S[i .. i + 4], "good"); cost += headCount[i]; cost += tailCost[i + 4]; chmin(ans, cost); } } writeln(ans); } } } catch (EOFException e) { } }