题解 | #整数的个位#

const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;

void async function () {
    // Write your code here
    while(line = await readline()){
        let tokens = line.split(' ');
        let a = parseInt(tokens[0]);
        // let b = parseInt(tokens[1]);
        // console.log(a + b);

        let num = parseInt(a%10);
        console.log(num);
    }
}()