10 PRINT "NUMBER","SQUARE ROOT","CUBE ROOT","FOURTH ROOT"
20 FOR N = 1 TO 10
30    PRINT N,
40    FOR R = 2 TO 4
50       PRINT N^(1/R),
60    NEXT R
70    PRINT
80 NEXT N
99 END
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    