๐ก ์ฌ๊ทํจ์๋ฅผ ์ฌ์ฉํ์๋ค
const fs = require('fs');
const input = fs.readFileSync('/dev/stdin').toString().split('\n');
let num = parseInt(input[0]);
let result = '';
//๊ฐ ์ง์ ์ฌ๋ ์ฌ๋ ์๋ฅผ ๊ตฌํ๋ ํจ์
const calc = (k, n) =>{//์ธต์์ ํธ์๋ฅผ ์ธ์๋ก ์ ๋ฌ
let sum = 0;
if(k===0){
sum = n
}else{
for(let i=1;i<=n;i++){
sum += calc(k-1,i);
}
}
return sum;
}
for(i=1;i<1+2*num;i+=2){
let k = parseInt(input[i]); //์ธต
let n = parseInt(input[i+1]); //ํธ
console.log(calc(k,n));
}