include[HTML_REMOVED]
include[HTML_REMOVED]
include[HTML_REMOVED]
using namespace std;
int main()
{
int a=0,b=0,c=0;
cin>>a;
if(a>3600)
{
b=a/3600;
a=a%3600;
}
if(a>60)
{
c=a/60;
a=a%60;
}
printf(“%d:%d:%d”,b,c,a);
return 0;
}