AT LAST.
SUM.＂总求和．
ULINE.
WRITE: / LINE-COL1, LINE-COL2, LINE-COL3.
ENDAT.
ENDLOOP.
其输出为：
A 1 1
A 2 4
A 3 9
________________________________
A 6 14
B 2 4
B 4 16
B 6 36
________________________________
B 12 56
________________________________
* 18 70
