C3123213231313231312323132313231333131323223313232213113313233313232233111   >>    C312321323131323131232313231323133313132322331323221311331323331323223311   <<    C3123213231313231312323132313231333131323223313232213113313233313232233113   >>      C3123213231313231312323132313231333131323223313232213113313233313232233112   >>