C11111333133313232233133313331333131133132313311211111312112113231   >>    C1111133313331323223313331333133313113313231331121111131211211323   <<    C11111333133313232233133313331333131133132313311211111312112113233   >>      C11111333133313232233133313331333131133132313311211111312112113232   >>