C1111133313331323223313331333133313331333232233133112213231132311   >>    C111113331333132322331333133313331333133323223313311221323113231   <<    C1111133313331323223313331333133313331333232233133112213231132313   >>      C1111133313331323223313331333133313331333232233133112213231132312   >>