C++ HDU 2081 手机短号

#include<iostream>using namespace std;int main(){    int n, i;    char a[12];    int b[2];    b[0] = 6;    cin >> n;    while (n--)    {        cin >> a;        cout << b[0];        for (i = 6; i < 11; i++)        {            cout << a[i];        }        cout << endl;    }    return 0;}