// Assume: each column contains N values
matches = all-zero bit-string of length N
for i in 0 .. N-1 {
   x = b[i]  // i'th value in b column
   if (x == 5)
       matches[i] = 1  // set bit i in matches
}
for i in 0 .. N-1 {
   if (matches[i] == 0) continue
   add (a[i], b[i], c[i]) to Results
}