+
20+20
40
40-10
30
10x10
100
100-2
98
999
1000
40+50
90
30-20
10
50x10
60
200-100
72
70
70+10
80
60-20
40
9000x9000
81,000,000
500-300
200
777
800
500+200
700
100-100
0
300x200
60,000
900-900
0
700+700
1400
5000-2000
3000
9000x2000
18,000,000
9000-2000
7000