C1111233131211111211113313331333133313231323331333131133132321132211   >>    C111123313121111121111331333133313331323132333133313113313232113221   <<    C1111233131211111211113313331333133313231323331333131133132321132213   >>      C1111233131211111211113313331333133313231323331333131133132321132212   >>