10 X=4 : Y=5
20 DIM A(X) : DIM B(Y) : DIM C(X+Y)
30 FOR I=1 TO X
40 : A(I) = I
50 NEXT
60 FOR I=1 TO Y
70 : B(I) = I*10
80 NEXT
90 FOR I=1 TO X
100 : C(I) = A(I)
110 NEXT
120 FOR I=1 TO Y
130 : C(X+I) = B(I)
140 NEXT
150 FOR I=1 TO X+Y
160 : PRINT C(I);
170 NEXT