C111112111133131121133133313331323133313221131211113313221233321   >>    C11111211113313112113313331333132313331322113121111331322123332   <<    C111112111133131121133133313331323133313221131211113313221233323   >>      C111112111133131121133133313331323133313221131211113313221233322   >>