SELECT roundDuration(0);
SELECT roundDuration(10);
SELECT roundDuration(30);
SELECT roundDuration(60);
SELECT roundDuration(120);
SELECT roundDuration(180);
SELECT roundDuration(240);
SELECT roundDuration(300);
SELECT roundDuration(600);
SELECT roundDuration(1200);
SELECT roundDuration(1800);
SELECT roundDuration(3600);
SELECT roundDuration(7200);
SELECT roundDuration(18000);
SELECT roundDuration(36000);
SELECT roundDuration(37000);