python/TangDou/DianZiXieHuiLevel1/2.cpp

#include <iostream>

using namespace std;

int main() {
    int n;
    cin >> n;
    while (n) {
        int a = n % 10;
        n /= 10;
        //输出最后一位
        cout << a;
    }
    return 0;
}