C21111113313132322331323331323113313233313231122112323331123221   >>    C2111111331313232233132333132311331323331323112211232333112322   <<    C21111113313132322331323331323113313233313231122112323331123223   >>      C21111113313132322331323331323113313233313231122112323331123222   >>