C12121223131323223313233231323133313233313131323131133132322123221   >>    C1212122313132322331323323132313331323331313132313113313232212322   <<    C12121223131323223313233231323133313233313131323131133132322123223   >>      C12121223131323223313233231323133313233313131323131133132322123222   >>