#include <stdio.h>
void main() {
  int dat,tot,leap,yy,mm,i,mon[12]={31,28,31,30,31,30,31,31,30,31,30,31};
  printf("give the the year , month -->"); scanf("%d %d",&yy,&mm);
  leap=(yy-1)/4-(yy-1)/100+(yy-1)/400; tot=(yy-1)+leap; dat=(1+tot)%7;
  if (((yy%4) == 0) && ((yy%100) != 0) || ((yy%400) == 0)) mon[1]++;
  for (i=0; i<=(mm-2); i++)
    dat=(dat+mon[i])%7;
  printf("\n\n    %d  ",yy);
  switch (mm) {
  case  1: printf("January\n"); break;
  case  2: printf("February\n"); break;
  case  3: printf("March\n"); break;
  case  4: printf("April\n"); break;
  case  5: printf("May\n"); break;
  case  6: printf("June\n"); break;
  case  7: printf("July\n"); break;
  case  8: printf("August\n"); break;
  case  9: printf("September\n"); break;
  case 10: printf("October\n"); break;
  case 11: printf("November\n"); break;
  case 12: printf("December\n"); break;
  }
  printf(" Sun Mon Tue Wed Thu Fri Sat\n");
  for (i=1; i<=dat; i++) printf("    ");
  for (i=1; i<=mon[mm-1]; i++) {
    printf("%4d",i); dat=(dat+1)%7;
    if (dat == 0) printf("\n");
  }
  printf("\n");
}