4
500000
100-50
68x68:68
500000+1-1
9
1+2+3+4+5+6+7+8+9 +10:5:11
50
5+ 5+ 5+ 5+ 5+ 5+ 5+ 5+5 +5 +5 +5 +5 +5 +5 + 5 + 5 :17
50 -100
1
30 -30+30-30+30-30 +30
68
-50
0
3x3
5
30
2+2
3-3
