let str = readline();
let arr = str.split(" ");
let max = 0;
// 注意数组的元素是string类型,需要使用Number()转换
let i = 0, len = arr.length;
for (; i < len; i++) {
if (Number(arr[i]) > max) {
max = arr[i];
}
}
console.log(max); let str = readline();
let arr = str.split(" ");
// 数组的扩展:将一个数组转为参数序列
console.log(Math.max(...arr));