//#pragma GCC optimize ("O3") //#pragma GCC target ("tune=native") //#pragma GCC target ("avx") //#include <bits/stdc++.h> #include <algorithm> #include <climits> #include <cmath> #include <cstdio> #include <cstdlib> #include <ctime> #include <iostream> #include <sstream> #include <functional> #include <map> #include <set> #include <unordered_map> #include <unordered_set> #include <bitset> #include <string> #include <cstring> #include <vector> #include <queue> #include <stack> #include <deque> #include <list> #include <numeric> using namespace std; typedef long long ll; typedef unsigned long long ull; typedef long double ld; typedef pair<ll,ll> P; typedef pair<P,ll> PPI; typedef pair<ll,P> PIP; typedef vector<ll> vl; typedef vector<vl> vvl; typedef vector<P> vp; #define PQ(T) priority_queue<T,vector<T>,greater<T>> #define PQ2(T) priority_queue<T> const double PI = 3.14159265358979323846; const double EPS = 1e-12; const ll INF = 1LL<<29; const ll mod = 1e9+7; #define REP(i,a,b) for(ll (i)=a;(i)<(ll)(b);++(i)) #define rep(i,n) REP(i,0,n) #define rep1(i,n) REP(i,1,n+1) #define repd(i,n,d) for(ll (i)=0;(i)<(ll)(n);(i)+=(d)) #define all(v) (v).begin(), (v).end() #define pb(x) push_back(x) #define mp(x,y) make_pair((x),(y)) #define mset(m,v) memset((m),(v),sizeof(m)) #define chmin(x,y) ((x)=min((x),(y))) #define chmax(x,y) ((x)=max((x),(y))) #define fst first #define snd second #define UNIQUE(x) (x).erase(unique(all(x)),(x).end()) #define DEBUG(x) cerr<<"line ("<<__LINE__<<") "<<#x<<": "<<x<<endl; template<class T> ostream &operator<<(ostream &os, const vector<T> &v){int n=v.size();rep(i,n)os<<v[i]<<(i==n-1?"":" ");return os;} #define INIT std::ios::sync_with_stdio(false);std::cin.tie(0); int main(){ ll a; cin>>a; ll t = a*60/100+10*60; t %= 60*24; printf("%02d:%02d\n", t/60, t%60); return 0; }