C1111233131211111211113313331333133313331333133313331333132233131333221   >>    C111123313121111121111331333133313331333133313331333133313223313133322   <<    C1111233131211111211113313331333133313331333133313331333132233131333223   >>      C1111233131211111211113313331333133313331333133313331333132233131333222   >>