11011= 2^4+2^3+2^1+2^0 = 16+8+2+1=27
1100 = 2^3+2^2=8+4=12
10011 = 2^4+2^1+2^0=16+2+1=19
110101=2^5+2^4+2^2+2^0=32+16+4+1=53
1010100 = 2^6+2^4+2^2=64+16+4=84
11011= 2^4+2^3+2^1+2^0 = 16+8+2+1=27
1100 = 2^3+2^2=8+4=12
10011 = 2^4+2^1+2^0=16+2+1=19
110101=2^5+2^4+2^2+2^0=32+16+4+1=53
1010100 = 2^6+2^4+2^2=64+16+4=84