#include
#include
#include
int WordCount(char a[])
{
int n= strlen(a);
int cnt=0;
int i;
for(i=0;i {
if(!isalpha(a[i]) && i-1>=0 && isalpha(a[i-1]))
{
cnt++;
}
}
return cnt;
}
int main()
{
char a[1024];
while(gets(a))
{
printf("%d\n",WordCount(a));
}
return 0;
}
