HAI 1.3

HOW IZ I ackermann YR m AN YR n
    NOT m, O RLY?
        YA RLY, FOUND YR SUM OF n AN 1
    OIC

    NOT n, O RLY?
        YA RLY, FOUND YR I IZ ackermann YR DIFF OF m AN 1 AN YR 1 MKAY
    OIC

    FOUND YR I IZ ackermann YR DIFF OF m AN 1 AN YR...
     I IZ ackermann YR m AN YR DIFF OF n AN 1 MKAY MKAY
IF U SAY SO

IM IN YR outer UPPIN YR m TIL BOTH SAEM m AN 5
    IM IN YR inner UPPIN YR n TIL BOTH SAEM n AN DIFF OF 6 AN m
        VISIBLE "A(" m ", " n ") = " I IZ ackermann YR m AN YR n MKAY
    IM OUTTA YR inner
IM OUTTA YR outer

KTHXBYE