题解 | #坐标移动#

    let arr = (await readline()).split(';').filter(e=>/^(A|S|W|D){1}[0-9]{1,2}$/.test(e))
    let x = 0
    let y = 0
    arr.forEach(e=>{
        n = Number(e.slice(1))
        switch(e[0]){
            case 'A':
                x -= n
                break;
            case 'D':
                x += n
                break;
            case 'S':
                y -= n
                break;
            case 'W':
                y += n
                break;
        }
    })
    console.log(x+','+y)