int main(){
  int w,d=12,a;
  scanf("%d",&w);
  a=12%7;
  if((a+w)%7==5){printf("1\n");}
  d+=31;
  a=d%7;
  if((a+w)%7==5){printf("2\n");}
  d+=28;
  a=d%7;
  if((a+w)%7==5){printf("3\n");}
  d+=31;
  a=d%7;
  if((a+w)%7==5){printf("4\n");}
  d+=30;
  a=d%7;
  if((a+w)%7==5){printf("5\n");}
   d+=31;
  a=d%7;
  if((a+w)%7==5){printf("6\n");}
  d+=30;
  a=d%7;
  if((a+w)%7==5){printf("7\n");}
  d+=31;
  a=d%7;
  if((a+w)%7==5){printf("8\n");}
  d+=31;
  a=d%7;
  if((a+w)%7==5){printf("9\n");}
   d+=30;
  a=d%7;
  if((a+w)%7==5){printf("10\n");}
   d+=31;
  a=d%7;
  if((a+w)%7==5){printf("11\n");} 
  d+=30;
  a=d%7;
  if((a+w)%7==5){printf("12\n");}
return 0;
}