1016. 部分A+B (15)

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

int main()
{
    string A;
    string B;
    char PA;
    char PB;
    cin>>A>>PA>>B>>PB;

    int Sum_A =0;
    int Sum_B = 0;
    for ( int i = 0 ; i < A.length() ; i++){
        if ( A[i] == PA){
            Sum_A = Sum_A * 10 + (A[i] - '0');
        }
    }
    for ( int i = 0 ; i < B.length() ; i++){
        if ( B[i] == PB){
            Sum_B = Sum_B * 10 + (B[i] - '0');
        }
    }

    int sum = Sum_A + Sum_B;
    cout<<sum;

    return 0;
 }