C11111333133313232233133313331333131133131211111333132321133321   >>    C1111133313331323223313331333133313113313121111133313232113332   <<    C11111333133313232233133313331333131133131211111333132321133323   >>      C11111333133313232233133313331333131133131211111333132321133322   >>