My program works right for numbers 0001 and 4100, but it counts 86 iterations insted of 88 for number 5761

include <iostream>

include <string>

include <fstream>

using namespace std;

void itoMass(int iMass[], int iZnach) { for (int j = 0; j < 8; j++) { int iProv = 0; while (true) { iMass[7-j] = iZnach % 10; iProv = (iZnach % 10)*pow(2, j); if (iProv == iZnach || j==7) { break; } iZnach = iZnach / 10; j++; } iMass[7-j] = 0; } }

int main() { setlocale(0, ""); ofstream out; ifstream in; out.open("output.txt"); in.open("input.txt"); int iSize = 0; in >> iSize; for (int i = 0; i < iSize; i++) { int iNum = 0; in >> iNum; int iMass[1000]; int iCount = 0; iMass[0] = iNum; while (true) { iCount++; iNum = iNum*iNum; int iProm[8]; itoMass(iProm, iNum); iNum = iProm[2] * 1000 + iProm[3] * 100 + iProm[4] * 10 + iProm[5]; int i1 = 0;

        for (int j = 0; j < iCount; j++)
        {

            if (iNum == iMass[j])
            { 
                i1 = 1;
                cout << iNum << " " << iMass[j] <<  endl;

                break;
            }
        }
        if (i1 == 1) 
        {
            cout << "Нащел " << iCount << endl;
            break;
        }

        iMass[iCount] = iNum;
    }
}

out.close();
in.close();
system("pause");
return 0;

}