1*23f24377SWarner Losh{for(i=1; i<=NF; i++) { 2*23f24377SWarner Losh if (x[$i] == "") 3*23f24377SWarner Losh y[++n] = $i 4*23f24377SWarner Losh x[$i]++ 5*23f24377SWarner Losh } 6*23f24377SWarner Losh} 7*23f24377SWarner LoshEND { 8*23f24377SWarner Losh for (i=0; i<n; i++) 9*23f24377SWarner Losh print (y[i], x[y[i]]) 10*23f24377SWarner Losh} 11