C1111233131211111211113313231333133313331323331333133313222322123231   >>    C111123313121111121111331323133313331333132333133313331322232212323   <<    C1111233131211111211113313231333133313331323331333133313222322123233   >>      C1111233131211111211113313231333133313331323331333133313222322123232   >>