C11111333133313232233133313331333131133132313331322121111112232321   >>    C1111133313331323223313331333133313113313231333132212111111223232   <<    C11111333133313232233133313331333131133132313331322121111112232323   >>      C11111333133313232233133313331333131133132313331322121111112232322   >>