/**
 *
 * @param {year} a
 * @param {month} b
 * @param {date} c
 */
function solve(a, b,c){


    const d = new Date(a, b, c);
    const year = d.getFullYear(a);
    const date = d.getDate(c)+1;
    const month = d.getMonth(b) ;
    const formatted = `${year}- ${month}- ${date}`
    console.log(formatted);
}



    solve(2016, 9, 30);
    solve(2020, 3, 24);