题解 | 牛牛是否被叫家长

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

void async function () {
    const lines = (await readline()).split(' ')
    const A = parseInt(lines[0])
    const B = parseInt(lines[1])
    const C = parseInt(lines[2])

    if (A >= 0 && B >= 0 && C >= 0 && A <= 100 && B <= 100 && C <= 100) {
        const Avg = (A + B + C) / 3
        if (Avg >= 60) {
            console.log('NO')
        } else {
            console.log('YES')
        }

    } else {
        console.log('输入数据非法')
    }

    rl.close()
}()