C21111113313132322331323331323113313233313231122112323133112231   >>    C2111111331313232233132333132311331323331323112211232313311223   <<    C21111113313132322331323331323113313233313231122112323133112233   >>      C21111113313132322331323331323113313233313231122112323133112232   >>