MinMax

// Input.
let input = [3, 2, 5, 1];

// Custom implementation of read and print. Do not touch : )
let print = this.print || console.log;
let gets = this.gets || ((arr, index) => () => arr[index++])(input, 0);

// Solution

let num = +gets();
let max = Number.MIN_SAFE_INTEGER;
let min = Number.MAX_SAFE_INTEGER;
let total = 0;
for (i = 1; i <= num; i++) {
    let newValue = +gets();
    if (newValue >= max) {
        max = newValue;
    }
    if (newValue <= min) {
        min = newValue;
    }
    total += newValue;
}
print(`min=${min.toFixed(2)}`);
print(`max=${max.toFixed(2)}`);
print(`sum=${total.toFixed(2)}`);
print(`avg=${(total / num).toFixed(2)}`);