! Takoma Park M.S.

! Int-3

! Contest 2

! Alex Miao

DO

INPUT PROMPT "Input operation: " : operation$

IF operation$[1:5] = "UNION" OR operation$[1:9] = "INTERSECT" THEN

INPUT PROMPT "Input cell one: " : cell$

INPUT PROMPT "Input cell two: " : cell2$

ELSE

INPUT PROMPT "Input cell: " : cell$

END IF

IF operation$[1:6] = "DIVIDE" THEN

LET divide1$ = cell$[1:4] & cell$[1:4]

LET divide2$ = cell$[5:8] & cell$[5:8]

PRINT divide1$

PRINT divide2$

ELSEIF operation$[1:3] = "ADD" THEN

LET n = VAL(operation$[4:4])

LET add$ = cell$[1:n] & cell$[1:8-n]

PRINT add$

ELSEIF operation$[1:8] = "SUBTRACT" THEN

LET n = VAL(operation$[9:9])

LET subtract$ = cell$[n+1:8] & cell$[9-n:8]

PRINT subtract$

ELSEIF operation$[1:5] = "UNION" THEN

LET union$ = cell$[5:8] & cell2$[1:4]

PRINT union$

ELSEIF operation$[1:9] = "INTERSECT" THEN

LET intersect$ = cell$[1:2] & cell$[7:8] & cell2$[1:2] & cell2$[7:8]

PRINT intersect$

END IF

LOOP

END