import core.thread; import std.conv, std.stdio, std.string; import std.algorithm, std.array, std.bigint, std.container, std.math, std.range, std.regex; // Input class EOFException : Throwable { this() { super("EOF"); } } string[] tokens; string readToken() { for (; tokens.empty; ) { tokens = readln.split; if (tokens.empty && stdin.eof) throw new EOFException; } auto token = tokens[0]; tokens.popFront; return token; } int readInt() { return to!int(readToken); } long readLong() { return to!long(readToken); } real readReal() { return to!real(readToken); } // chmin/chmax 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; } // Pair struct Pair(S, T) { S x; T y; int opCmp( const Pair p) const { return (x < p.x) ? -1 : (x > p.x) ? +1 : (y < p.y) ? -1 : (y > p.y) ? +1 : 0; } int opCmp(ref const Pair p) const { return (x < p.x) ? -1 : (x > p.x) ? +1 : (y < p.y) ? -1 : (y > p.y) ? +1 : 0; } string toString() const { return "(" ~ to!string(x) ~ ", " ~ to!string(y) ~ ")"; } } auto pair(S, T)(inout(S) x, inout(T) y) { return Pair!(S, T)(x, y); } // Array int binarySearch(T)(in T[] as, in bool delegate(T) test) { int low = -1, upp = 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) { return (a < val); }); } int upperBound(T)(in T[] as, in T val) { return as.binarySearch((T a) { return (a <= val); }); } T[] unique(T)(in T[] as) { T[] bs; foreach (a; as) if (bs.empty || bs[$ - 1] != a) bs ~= a; return bs; } immutable INF = 10^^9 + 1; int V; int[][] nxt; int[] ac; int[] fail; int newNode() { nxt ~= new int[](26); nxt[$ - 1][] = -1; ac ~= 0; fail ~= -1; return V++; } void bfs() { int[] q; q ~= 0; for (; !q.empty; ) { const u = q[0]; q.popFront; foreach (e; 0 .. 26) { const v = nxt[u][e]; if (v != -1) { fail[v] = u ? nxt[fail[u]][e] : 0; ac[v] |= ac[fail[v]]; q ~= v; } else { nxt[u][e] = u ? nxt[fail[u]][e] : 0; } } } } int N; string S; void main(string[] args) { V = 0; newNode; foreach (k, s; [ "good", "problem" ]) { int u = 0; foreach (c; s) { const e = c - 'a'; if (nxt[u][e] == -1) { nxt[u][e] = newNode; } u = nxt[u][e]; } ac[u] = 1 << k; } bfs; debug{ foreach(u;0..V)writeln("nxt[",u,"] = ",nxt[u]); writeln("ac = ",ac); } try { for (; ; ) { foreach (tc; 0 .. readInt) { S = readToken; N = cast(int)(S.length); auto dp = new int[][][](N + 1, 3, V); foreach (i; 0 .. N + 1) foreach (f; 0 .. 3) foreach (u; 0 .. V) { dp[i][f][u] = INF; } dp[0][0][0] = 0; foreach (i; 0 .. N) foreach (f; 0 .. 3) foreach (u; 0 .. V) if (dp[i][f][u] < INF) { debug{ writeln(i," ",f," ",u,"; ",dp[i][f][u]); } foreach (e; 0 .. 26) { const v = nxt[u][e]; int ff = f; if (ac[v]) { if (f == 0 && (ac[v] & 1 << 1)) { continue; } if (ac[v] == 1 << f) { ff = f + 1; } } debug{ writeln(" ",i+1," ",ff," ",v,"; ",dp[i][f][u] + ((S[i] - 'a' != e) ? 1 : 0)); } chmin(dp[i + 1][ff][v], dp[i][f][u] + ((S[i] - 'a' != e) ? 1 : 0)); } } int ans = INF; foreach (u; 0 .. V) { chmin(ans, dp[N][2][u]); } writeln(ans); } } } catch (EOFException) {} }