#include <stdio.h>
#include <time.h>
#include <stdlib.h>
int main() {
    time_t t = time(NULL);
    if (t == -1) {
        perror("time");
        return 1;
    }
    struct tm *tm = localtime(&t);
    if (tm == NULL) {
        perror("localtime");
        return 1;
    }
    printf("Content-Type: text/plain\n\n");
    printf("%d-%02d-%02d", tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday);
    return 0;
}