/*** negunu.c ******/

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>

#define isleap(y) ((y) % 4 == 0 && (y) % 100 != 0 || (y) % 400 == 0)

int dayofweek(int d, int m, int y)
{
static int t[] = {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4};

y -= m < 3;

return (y + y / 4 - y / 100 + y / 400 + t[m - 1] + d) % 7;
}



int main(int argc, char **argv)
{
int day, mon, year;
static const char *days[] = {"Pazar", "Pazartesi", "Sali", "Carsamba", "Persembe", "Cuma", "Cumartesi"};
static const char *mons[] = {"Ocak", "Subat", "Mart", "Nisan", "Mayis", "Haziran", "Temmuz",
"Agustos", "Eylul", "Ekim", "Kasim", "Aralik"};
int daytabs[] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; 


if (argc != 4) {
fprintf(stderr, "<negunu> <gg> <aa> <yyyy>\n");
return 1;
}

day = atoi(argv[1]);

if (day < 1 || day > 31) {
fprintf(stderr, "gecersiz bir gun degeri girdiniz!\n");
return 2;
}

if (isdigit(*argv[2])) 
mon = atoi(argv[2]);
else {
int k;
for (k = 0; k < 12; ++k)
if (!stricmp(mons[k], argv[2]))
break;
if (k < 12)
mon = k + 1;
else
mon = 0;
}

if (mon < 1 || mon > 12) {
fprintf(stderr, "gecersiz bir ay degeri girdiniz!\n");
return 3;
}

year = atoi(argv[3]);

if (year <= 0) {
fprintf(stderr, "gecersiz bir yil degeri girdiniz!\n");
return 4;
}

if (isleap(year))
daytabs[2] = 29;

if (day > daytabs[mon]) {
fprintf(stderr, "gecersiz bir gun degeri girdiniz!\n");
return 5;
}

fprintf(stdout, "%s\n", days[dayofweek(day, mon, year)]);

return 0;
}