1
2
3
4
5
100

1+1=

2

100

2+2=

4

100

3+3=

6

100

4+4=

8

100

5+5=

10

200

9X12=

108

200

12X12=

144

200

99+99=

198

999999999

2^41=

2,199,023,255,552