C12313211232233312111111312111133133313331323133323232322331321321   >>    C1231321123223331211111131211113313331333132313332323232233132132   <<    C12313211232233312111111312111133133313331323133323232322331321323   >>      C12313211232233312111111312111133133313331323133323232322331321322   >>