#!/bin/bash

declare -A ht
declare -i i
declare -i hamm
declare -i raddr
declare -a pts

while read -a bits; do
  hamm=${#bits[@]}
  if [[ -z "$hamm" ]]; then
    continue
  fi
  raddr=${bits[$hamm-1]}/8
  cnthash="$hamm $raddr"
  if [[ -n ${ht[$cnthash]} ]]; then
    i=ht[$cnthash]
    ((i++))
    ht[$cnthash]="$i"
  else
    ht[$cnthash]="1"
    pts[${#pts[@]}]=$cnthash
  fi
  for pt in "${pts[@]}"; do
    echo "$pt ${ht[$pt]}"
  done
  echo ""
done