sm_hope 2022. 5. 18. 09:41
let input = require('fs').readFileSync('/dev/stdin').toString().trim().split('\n');

let answer = '';
let i = 0;

try{
while(true) {
    let tmp = input[i].split(' ').map(Number);
    

    answer += (tmp[0] + tmp[1]) + '\n';
    
    
    i++;
    }
}
catch(e) {
    console.log(answer)
};

try{}

catch(e){}