C1111233131211111211113313331333133313232321333131333132233131122321   >>    C111123313121111121111331333133313331323232133313133313223313112232   <<    C1111233131211111211113313331333133313232321333131333132233131122323   >>      C1111233131211111211113313331333133313232321333131333132233131122322   >>