#include<stdio.h>

#include<time.h>

int patients(int *yy, int *mm, int *dd, int *hh1, int *m1, int *s1, int *hh2, int *m2, int *s2, long *reception) {

struct tm time1;

struct tm time2;

time1.tm_year = yy - 1900;

time1.tm_mon = mm;

time1.tm_mday = dd;

time1.tm_hour = hh1;

time1.tm_min = m1;

time1.tm_sec = s1;

time2.tm_year = yy - 1900;

time2.tm_mon = mm;

time2.tm_mday = dd;

time2.tm_hour = hh2;

time2.tm_min = m2;

time2.tm_sec =s2;

reception = ((mktime(&time2) - mktime(&time1))/60)%reception;

return reception;

}

int main() {

int result;

int year, month, day, hour1, hour2, min1, min2, sec1, sec2;

long int min;

year = 2012;

month = 6;

day = 5;

hour1 = 12;

min1 = 30;

sec1 = 0;

hour2 = 16;

min2 = 30;

sec2 = 0;

min = 30;

result = patients(year, month, day, hour1, min1, sec1, hour2, min2, sec2, min);

printf("Number of patients %d", result);

return 0;

}