
int main()
{
	int w,i,sum=0;
	cin>>w;
	for (i=0;i<=11;i++)
	{
		switch (i)
		{
		case 1:
		case 3:
		case 5:
		case 7:
		case 8:
		case 10:sum+=31;break;
		case 4:
		case 6:
		case 9:
		case 11:sum+=30;break;
		case 2:sum+=28;break;
		default:sum+=0;break;
		}
		if ((sum+13+w-1)%7==5)   cout<<i+1<<endl;
	}
    return 0;
}
			    
