C11111333133313232233133313331333131133132313311211111323312132311   >>    C1111133313331323223313331333133313113313231331121111132331213231   <<    C11111333133313232233133313331333131133132313311211111323312132313   >>      C11111333133313232233133313331333131133132313311211111323312132312   >>