40 PRINT "arguments"
50 I = 10
60 DEF FNB(I) = I * 2
70 PRINT FNB(3)
80 PRINT I
90 PRINT "nested"
100 DEF FNC(I) = I * 2
110 DEF FND(I) = I + 1
120 PRINT FND(FNC(FNC(2)))