#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main(void) {
    int y, m, d;
    scanf( "%d/%d/%d", &y, &m, &d );
    struct tm tm = { 0, 0, 0, d, m-1, y-1900 }; 
    time_t time = mktime( &tm ) + 86400 * 2;
    struct tm *ltime = localtime( &time );
    printf( "%d/%02d/%02d", ltime->tm_year + 1900, ltime->tm_mon + 1, ltime->tm_mday );
}