C11111333133313232233133313331333131133132313331313233313232321   >>    C1111133313331323223313331333133313113313231333131323331323232   <<    C11111333133313232233133313331333131133132313331313233313232323   >>      C11111333133313232233133313331333131133132313331313233313232322   >>