ON 0 TOTAL OFF
[0]
ON 5 + 7 TOTAL OFF
[12]
ON 4 * ( 3 + 2 ) TOTAL OFF
[20]
ON (1+2)*(3+4) TOTAL LASTANSWER + 10 TOTAL OFF
[21,31]
ON IF LASTANSWER,1,2 TOTAL IF LASTANSWER,3,4 TOTAL OFF
[1,4]
