using System;
using System.Collections.Generic;
using System.Linq;

// https://yukicoder.me/problems/no/252
class Program
{
    static string InputPattern = "InputX";

    static List<string> GetInputList()
    {
        var WillReturn = new List<string>();

        if (InputPattern == "Input1") {
            WillReturn.Add("3");
            WillReturn.Add("veryverygoodproblem");
            WillReturn.Add("goodexcellentproblems");
            WillReturn.Add("problemgood");
        }
        else if (InputPattern == "Input2") {
            WillReturn.Add("2");
            WillReturn.Add("goodproblem");
            WillReturn.Add("agdddekproblemsdl");
        }
        else if (InputPattern == "Input3") {
            WillReturn.Add("9");
            WillReturn.Add("geodaaaproblem");
            WillReturn.Add("goodproblen");
            WillReturn.Add("badendlessprobrem");
            WillReturn.Add("podpdpprrobleem");
            WillReturn.Add("problemgoodprobremgood");
            WillReturn.Add("smallproblem");
            WillReturn.Add("proproprefurohobbyhobby");
            WillReturn.Add("gooeproblemd");
            WillReturn.Add("itisproblemcoolgoodproblem");
        }
        else if (InputPattern == "Input4") {
            return System.IO.File.ReadAllLines(@"C:\CSharp\TestConsole\yukicoder_test.txt").ToList();

        }
        else {
            string wkStr;
            while ((wkStr = Console.ReadLine()) != null) WillReturn.Add(wkStr);
        }
        return WillReturn;
    }

    static long[] GetSplitArr(string pStr)
    {
        return (pStr == "" ? new string[0] : pStr.Split(' ')).Select(pX => long.Parse(pX)).ToArray();
    }

    static string mS;
    static char[] mCharArr;
    static int UB_S;

    static void Main()
    {
        List<string> InputList = GetInputList();
        var sb = new System.Text.StringBuilder();
        foreach (string EachStr in InputList.Skip(1)) {
            mS = EachStr;
            mCharArr = EachStr.ToCharArray();
            UB_S = mCharArr.GetUpperBound(0);
            long Answer = Solve();
            sb.Append(Answer);
            sb.AppendLine();
        }
        Console.Write(sb.ToString());
    }

    static int Solve()
    {
        Dictionary<int, int> CostDictGood = DeriveCost("good");
        Dictionary<int, int> CostDictProb = DeriveCost("problem");

        // 累積Min作成
        int[] ValuesArr = CostDictProb.Values.ToArray();
        int UB_ValuesArr = ValuesArr.GetUpperBound(0);
        var RunMinDict = new Dictionary<int, int>();
        for (int I = ValuesArr.GetUpperBound(0); 0 <= I; I--) {
            RunMinDict[I] = ValuesArr[I];
            if (RunMinDict.ContainsKey(I + 1)) {
                RunMinDict[I] = Math.Min(RunMinDict[I], RunMinDict[I + 1]);
            }
        }

        HashSet<int> PosSet = GetPosSet();
        int Answer = int.MaxValue;

        int BaseCnt = 0;
        // goodにする位置を全探索
        for (int I = 0; I <= UB_S; I++) {
            int Cost = BaseCnt;
            int RangeSta = I + 4;
            int RangeEnd = UB_ValuesArr;
            if (RangeSta <= RangeEnd) {
                Cost += CostDictGood[I] + RunMinDict[RangeSta];
                Answer = Math.Min(Answer, Cost);
            }
            if (PosSet.Contains(I)) {
                BaseCnt++;
            }
        }
        return Answer;
    }

    // 文字列を引数とし、コスト[開始Ind]なDictを返す
    static Dictionary<int, int> DeriveCost(string pTarget)
    {
        var CostDict = new Dictionary<int, int>();
        for (int I = 0; I <= UB_S; I++) {
            if (I + pTarget.Length - 1 > UB_S) break;

            int Cost = 0;
            for (int J = 0; J <= pTarget.Length - 1; J++) {
                if (mCharArr[I + J] != pTarget[J]) {
                    Cost++;
                }
            }
            CostDict[I] = Cost;
        }
        return CostDict;
    }

    // problemのmの位置のSetを返す
    static HashSet<int> GetPosSet()
    {
        var PosList = new HashSet<int>();
        for (int I = 0; I <= UB_S; I++) {
            if (I + "problem".Length - 1 > UB_S) break;
            string SubStr = mS.Substring(I, "problem".Length);
            if (SubStr == "problem") {
                PosList.Add(I + "problem".Length - 1);
            }
        }
        return PosList;
    }
}