#!/usr/bin/perl

my @buckets = ();
my $highest = 0;

while (<>) {
  /^.\s+(\d+)\s+/ or next;
  $buckets[$1]++;
  if ($1 > $highest) { $highest = $1; }
}

for my $i (0..$highest) {
  my $count = $buckets[$i];
  $count ||= 0;
  print "$i $count\n";
}