int main()
{int w;
scanf("%d",&w);
if((w+12)%7==5)
printf("1\n");
if((w+12+31)%7==5)
printf("2\n");
if((w+12+31+28)%7==5)
printf("3\n");
if((w+12+31+28+31)%7==5)
printf("4\n");
if((w+12+31+28+31+30)%7==5)
printf("5\n");
if((w+12+31+28+31+30+31)%7==5)
printf("6\n");
if((w+12+31+28+31+30+31+30)%7==5)
printf("7\n");
if((w+12+31+28+31+30+31+30+31)%7==5)
printf("8\n");
if((w+12+31+28+31+30+31+30+31+31)%7==5)
printf("9\n");
if((w+12+31+28+31+30+31+30+31+31+30)%7==5)
printf("10\n");
if((w+12+31+28+31+30+31+30+62+30+31)%7==5)
printf("11\n");
if((w+12+31+28+31+30+31+30+62+30+31+30)%7==5)
printf("12\n");
return 0;
}