#!/usr/bin/env perl

my @g = 232..255;
my $falloff = 6;
my $offset = 3.2;
my $lines = ();
while (my $line = <DATA>) {
    chomp $line;
    my @c = split(//, $line);
    push @$lines, \@c;
}
sub t {
    my $v = shift;
    (($v)/$falloff)**2 + 0.4;
}
for my $i (0..46) {
    for my $j (0..92) {
        my $v = t($i-23) + t($j/2-23);
        $v = $v > 0? 21/$v : 23;
        $v = $v > 23? 23 : $v;
        $v = $g[$v];
        #print "\e[38;5;${v}m█\e[0m";
        print "\e[38;5;${v}m";
        print $lines->[$i]->[$j];
        print "\e[0m";
    }
    print "\n";
}
__DATA__
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