Kindergarten Counting Game

#include<stdio.h>
char str[500];

int Find(int t)
{
int i;
for (i=t;str[i];i++)
{
if((str[i]>='A' && str[i]<='Z') || (str[i]>='a' && str[i]<='z')) continue;
return i;
}
return i;
}
int main()
{
int i;
while(gets(str)!=NULL)
{
int ans=0;
for (i=0;str[i];)
{
if((str[i]>='a' && str[i]<='z') || (str[i]>='A' && str[i]<='Z') )
{
int t=Find(i);
ans++;
i=t;
}
else i++;
}

printf("%d\n",ans);
}
return 0;
}