C11111211113313112113313331333133313231121131211111133131133132233223313332111   >>    C1111121111331311211331333133313331323112113121111113313113313223322331333211   <<    C11111211113313112113313331333133313231121131211111133131133132233223313332113   >>      C11111211113313112113313331333133313231121131211111133131133132233223313332112   >>