//Dennis
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <iomanip>
#include <sstream>
#include <map>
using namespace std;
#define FOR(i,n) for (int i=0;i<n;i++)
#define FORN(i,a,b) for (int i=a;i<=b;i++)
#define FORD(i,a,b) for (int i=a;i>=b;i--)
#define all(v) v.begin() v.end()

int main()
{
	//generate forward
	map<string,int> forward;
	int i=0;
	stringstream str;
	str.fill('0');
	FORN(hh,0,23) FORN(mm,0,59) FORN(ss,0,59)
	{
		str.str("");
		str<<hh<<":"<<setw(2)<<mm<<":"<<setw(2)<<ss;
		forward[str.str()]=i++;
	}
	
	//generate backwards
	map<int,string> backwards;
	i=1;
	FORD(hh,23,0) FORD(mm,59,0) FORD(ss,59,0)
	{
		str.str("");
		if(hh<10) str<<" ";
		str<<hh<<":"<<setw(2)<<mm<<":"<<setw(2)<<ss;
		backwards[i++]=str.str();
	}

	string input;
	while(cin>>input && input.compare("0:00:00"))
		if (forward[input]) cout<<backwards[forward[input]]<<endl;
		else cout<<"I broke time-space continuum!"<<endl;
	return 0;
}