12345678 W B H -------- 12356478 - 1 3 12364578 - 1 3 12643578 - 2 13246578 - 3 -------- 13265478 - 1 3 13254678 - 1 3 13542678 - 2 13245678 - --s -------- 13256478 - 1 3 13264578 - 1 3 13642578 - 2 12346578 - 3 -------- 12365478 - 1 3 12354678 - 1 3 12543678 - 2 12345678 - --s -------- 5056 rows ending in 12345678 Touch is true