C2122121212132322331313132313232233132333132312113313231333112331   >>    C212212121213232233131313231323223313233313231211331323133311233   <<    C2122121212132322331313132313232233132333132312113313231333112333   >>      C2122121212132322331313132313232233132333132312113313231333112332   >>