[CodeUp] #4041-숫자 다루기(정올 1번 수준 문제)

#include <iostream>
#include <string>
#include <algorithm>
using namespace std;

int main(){
    string num;
    cin >> num;
    reverse(num.begin(),num.end());

    int index;
    for(int i=0;i<num.size();i++){
        if(num.at(i)!='0'){
            index = i;
            break;
        }
    }
    num.erase(0,index);

    int sum = 0;
    for(int i=0;i<num.size();i++){
        sum += num.at(i) - '0';
    }

    cout << num << "\n" << sum;
}