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

int main(int argc, char **argv){
    FILE *inp = fopen(argv[1], "r");
    struct tm cur;
    int pred = -1;
    while (fscanf(inp, "%d/%d/%d %d:%d:%d\n",
                &(cur.tm_year),
                &(cur.tm_mon),
                &(cur.tm_mday),
                &(cur.tm_hour),
                &(cur.tm_min),
                &(cur.tm_sec)) > 0){
        cur.tm_year -= 1900;
        cur.tm_mon--;
        cur.tm_isdst = 1;
        int c = mktime(&cur);
        if (pred != -1)
            printf("%lld\n", (long long)difftime(c, pred));
        pred = c;
    }
    return 0;
}