#!/bin/bash

declare -i t=$1

while [ $((t--)) -ne 0 ]; do
	if [ $t -gt 5400 ]; then
		h=$((t/3600))
		m=$(((t-(h*3600))/60))
		if [ $m -lt 10 ]; then m=0$m; fi
		s=$((t%60))
		if [ $s -lt 10 ]; then s=0$s; fi
		echo -en "\r$h:$m:$s                "
	elif [ $t -gt 90 ]; then
		m=$((t/60))
		s=$((t%60))
		if [ $s -lt 10 ]; then s=0$s; fi
		echo -en "\r$m:$s      "
	else
		echo -en "\r$t     "
	fi
	sleep 1
done
echo -en "\r"