# use strict;
# use warnings;

chomp(my $s = <>);
$s =~ s/hamu/1/g;
$s =~ s/ham/0/g;
my $n = 0;
foreach (split(//, $s)) {
    $n <<= 1;
    $n |= $_;
}
my $b = sprintf('%b', $n * 2);
$b =~ s/1/hamu/g;
$b =~ s/0/ham/g;
print($b, "\n");