C3132121111331312113313331333133313331333133313233313113313331333133323223221   >>    C313212111133131211331333133313331333133313331323331311331333133313332322322   <<    C3132121111331312113313331333133313331333133313233313113313331333133323223223   >>      C3132121111331312113313331333133313331333133313233313113313331333133323223222   >>