C1111233131211111211113313331333133313231323331333131132131133231   >>    C111123313121111121111331333133313331323132333133313113213113323   <<    C1111233131211111211113313331333133313231323331333131132131133233   >>      C1111233131211111211113313331333133313231323331333131132131133232   >>