2^A=3,2^B=6,2^C=122^A*2=62^(A+1)=2^BA+1=B2^B*2=122^(B+1)=2^CB+1=CC=B+1=A+2
A+1=BB+1=C
a=b-1c=b+1
2a+b=c
a+1=ba+2=cb+1=c