#include<bits/stdc++.h>
using namespace std;
#define lo long long
#define sr string
#define ch char
#define ve vector
#define bl bool
#define all(x) x.begin(),x.end()
#define rep(i,a) for(lo i=0;i<a;i++)
#define rrep(i,a,b) for(lo i=a;i<b;i++)
#define rrrep(i,a,b) for(lo i=a;i>=b;i--)
#define wh while
#define lobo(a,b,x)-A lower_bound(A+a,A+b,x)-A;
#define get(i,p) get<i>(p)

int main(){
    lo n;
    cin>>n;
    double a=(double)n/100;
    lo b=n/100;
    if(60*(a-b)<10){
        cout<<10+b<<":0"<<60*(a-b)<<endl;
    }
    else{
        cout<<10+b<<':'<<60*(a-b)<<endl;
    }
}