C31211133313132313231323331313132313231313232233132333132322132311112331   >>    C3121113331313231323132333131313231323131323223313233313232213231111233   <<    C31211133313132313231323331313132313231313232233132333132322132311112333   >>      C31211133313132313231323331313132313231313232233132333132322132311112332   >>