#include<iostream>
#include<conio.h>
using namespace std;

char space(char str[])
{
int i,c=0;
for(i=0;str[i]!='\0';i++)
{
if(str[i]==' ')
c++;
if(str[i]>='a' && str[i]<='z')
{
str[i]=str[i]-32;
}
else if(str[i]>='A' && str[i]<='Z')
{
str[i]=str[i]+32;
}
cout<<str[i];

}
cout<<"\nNO OF WORDS:"<<c+1<<endl;

}

int main()
{
char str[50];
cout<<endl<<endl;
cout<<"*****************************************************************************";
cout<<endl<<endl;
cout<<"ENTER STRING:";
cin.getline(str,50);
space(str);
cout<<"\n*****************************************************************************";
getch();
return 0;
}