#include <iostream>
#include <cstring>
 
using namespace std;
 
void reverseStr(char* ch) {
 
    if(ch==NULL) return;
    
    reverseStr( strtok( NULL , " " ) );
    cout << ch << " ";
}
 
int main() {
 
    char str[] = "how are you";
    reverseStr( strtok( str , " " ) );
    
    return 0;
}