C1111233131211111211113313231333133313331323331333133313332332321   >>    C111123313121111121111331323133313331333132333133313331333233232   <<    C1111233131211111211113313231333133313331323331333133313332332323   >>      C1111233131211111211113313231333133313331323331333133313332332322   >>