import java.util.Scanner;
public class program8
{
    public static void main(String[]args)
	{
	        String sen="";
	        int i=0;
		Scanner sc = new Scanner(System.in);
		System.out.print("Enter a sentence: ");
		sen=sc.nextLine();
		sen=sen.toUpperCase();
		int count=0;
		for(i=0;i< sen.length();i++)
		{
			if(i==0 && sen.charAt(i)=='A')
			{
				count++;
			}
			else if(i>0)
			{
				if((sen.charAt(i - 1) == ' ') && (sen.charAt(i)=='A'))
				{
				    count++;
		                }
		    }

		}
		System.out.println("Total number of words Starting with letter 'A'= "+count);
	}
}