Hard
80 x 3
240
500 x 9
4500
69 x 66
4554
99 x 999
98901
12 x 45668
548016
40 x 5
200
2400 x 3
7200
67 x 999
66933
899 x 89
80011
56 x 3444
192864
50 x 6
300
2500 x 3
7500
79 x 889
70231
69 x 999
68931
2 x 2 (EASY)
4
75 x 2
150
800 x 5
4000
85000 x 3
255000
7600 x 6999
53192400
78888 x 345
2761080
80 x 4
320
80 x 40
3200
560 x 999
559440
100 x 999
99900
45 x 99999
4499955