C12121223131323223313233231323133313233313131323131133132322333231   >>    C1212122313132322331323323132313331323331313132313113313232233323   <<    C12121223131323223313233231323133313233313131323131133132322333233   >>      C12121223131323223313233231323133313233313131323131133132322333232   >>