Input and Output.cpp

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;

int main() {
    int a;
    int b;
    int c;
    int sum;
    
    cin>>a;
    cin>>b;
    cin>>c;
    
    sum = a+b+c;
    cout<<sum;
      
    return 0;
}