#include <iostream>
using namespace std;
int main()
{
    setlocale(LC_CTYPE, "Russian");
    char S[500];
    int i=0, n;
    cout << "Введите строку: ";
    cin >> S;
    cout << "С какого символа: ";
    cin >> n;
    n -= 1;
    do
    {
        if (i == n)
        {
            do
            {
                cout << S[i];
                i++;
            } while (S[i] != '\0');
        }
        i++;
    } while (S[i] != '\0');
    system("pause");
    return 0;
}