#include <stdio.h>

#define ASSIGN_MIN_DATE minyear = year; minday = day; minmonth = month; 

int main(void)
{
	int day,month,year,minyear = 2013,minday = 32, minmonth = 13;
	do
	{
		scanf("%d/%d/%d",&day,&month,&year);
		if(day == 0)	{
		  break;
	    }
		if(year <= minyear)	{
			if(year == minyear)
			{
				if(month < minmonth)	{
					ASSIGN_MIN_DATE
				}
				else if(month == minmonth)
				{
					if(day < minday)
					{
						ASSIGN_MIN_DATE
					}else if(day == minday)
					{
						if(day < minday)
						{
							ASSIGN_MIN_DATE
						}
					}
				}
			}else if(year < minyear)
			{
				ASSIGN_MIN_DATE
			}
		}
	}while(year != 0);
	
	printf("The earliest date is: %d/%d/%d", minday, minmonth, minyear);
	
	fflush(stdin);
	getchar();
	
	return 0;
}