C11111333133313232233133313331333131133131121131211113313332221231   >>    C1111133313331323223313331333133313113313112113121111331333222123   <<    C11111333133313232233133313331333131133131121131211113313332221233   >>      C11111333133313232233133313331333131133131121131211113313332221232   >>