0 2^0 1
2^1 10 2
2^2 100 4
2^3 1000 8
2^4 10000 16
2^5 100000 32
2^6 1000000 64
2^7 10000000 128
2^8 100000000 256
2^9 1000000000 512
2^10 10000000000 1024