#include<string>
#include<iostream>
using namespace std;
int main()
{
	FILE*g;FILE*h;
	g=fopen("text.in","r");h=fopen("text.out","w");
	char a[200];int l=0,c=0,i;bool v=1;
	fgets(a,200,g);
	for(i=0;i<strlen(a);i++)
	{
		if(((a[i]>='a')&&(a[i]<='b'))||((a[i]>='A')&&(a[i]<='B')))
			l++;
		if((a[i]>='a'&&a[i]<='b'||a[i]>='A'&&a[i]<='B')&&v==1)
		{
			c++;v=0;
		}
		if((a[i]<='a'||a[i]>='b')&&(a[i]<='A'||a[i]>='B'))
			v=1;
	}
	fprintf(h,"%d",strlen(a));
}