#!/usr/bin/perl

my %buckets = ();
my $highest = 0;
my $lowest = 0;

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

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