4 B H 1234567 ------------- s 1234657 s - 1354267 s 1354627 s 1245367 s - 1524637 s 1342567 ------------- s 1342657 s - 1452367 s 1452637 s 1325467 s - 1532647 s 1423567 ------------- s 1423657 s - 1253467 s 1253647 s 1435267 s - 1543627 s 1234567 ------------- 1260 rows ending in 1234567 Touch is true