C111123313331323113313331333133313331323131211113313331322121333131   >>    C11112331333132311331333133313331333132313121111331333132212133313   <<    C111123313331323113313331333133313331323131211113313331322121333133   >>      C111123313331323113313331333133313331323131211113313331322121333132   >>