tribonacci

// Input: '1', '0', '5', '5' (line = 5)
// Expect output:
// 1
// 0 5
// 6 11 22
// 39 72 133 244
// 449 826 1519 2794 5139

// Output:
// 1
// 0 5
// 6 11 22
// 39 72 133 244
// 39 72 133 244 449 826 1519 2794 5139


let firstNum = +gets();
let secondNum = +gets();
let thirdNum = +gets();
let line = +gets();
let array = [];

print(firstNum);
print(secondNum, thirdNum);

if (line > 2) {
    for (let i = 3; i <= line; i++) {
        for (let j = 0; j < i; j++) {
            let tempNum = firstNum + secondNum + thirdNum;
            firstNum = secondNum;
            secondNum = thirdNum;
            thirdNum = tempNum;
            array.push(thirdNum);
        }
        if (array.length === 3) {
            print(array.toString().replace(/,/g, ' '));
        } else {
            print(array.slice(3).toString().replace(/,/g, ' '));
        }
    }
}