BTW { "output": "0\n1\n2\n3\n4\n" }
HAI 1.2
IM IN YR LOOP UPPIN YR i
    VISIBLE i
    BOTH SAEM i AN 4, O RLY?
        YA RLY
            GTFO
    OIC
IM OUTTA YR LOOP
KTHXBYE