C111123313121111121111331323133313331333132333133313331323223122321311321   >>    C11112331312111112111133132313331333133313233313331333132322312232131132   <<    C111123313121111121111331323133313331333132333133313331323223122321311323   >>      C111123313121111121111331323133313331333132333133313331323223122321311322   >>