C111112111133131121133133313331333133313331211111211113313231333132233323221   >>    C11111211113313112113313331333133313331333121111121111331323133313223332322   <<    C111112111133131121133133313331333133313331211111211113313231333132233323223   >>      C111112111133131121133133313331333133313331211111211113313231333132233323222   >>