10 DATA 7,-7,1,5,2,-4,3,0 20 READ n 30 DIM a(n): LET sum=0: LET leftsum=0: LET s$="" 40 FOR i=1 TO n: READ a(i): LET sum=sum+a(i): NEXT i 50 FOR i=1 TO n 60 LET sum=sum-a(i) 70 IF leftsum=sum THEN LET s$=s$+STR$ i+" " 80 LET leftsum=leftsum+a(i) 90 NEXT i 100 PRINT "Numbers: "; 110 FOR i=1 TO n: PRINT a(i);" ";: NEXT i 120 PRINT '"Indices: ";s$