#include <iostream>
using namespace std;

const int size = 1024;

void reverseCString( char *source, char *target )
{
   int sourceCount = 0; // this will count the number of character

   while( *source != NULL ) // statement will point the pointer source to 
   {                                // the last character of the c-string
      source++;
      sourceCount++;
   }

   while( sourceCount > 0 ) // loop until the all char been copied
   {
      source--; 
     *target = *source;  // copy the value of where ever the source pointer points to
      target++;  
      sourceCount--;
   }
}

int main()
{
	char data[ size ] = "";  
	char reverseData[ size ] = ""; // array of char wher the reversed copy wil be stored
 	int N = 0;

	cin >> N;

	for( int i = 0; i < N; i++ )
	{
	   cin >> data;
	   cout << data << " : ";
                reverseCString( data, reverseData );
	   cout << reverseData << endl;

	   for( int i = 0; i < size; i++ )
                   reverseData[ i ] = NULL;  // this will prepare all element for the next reading of C-String
	}
	return 0;
}

#include <iostream>

void reverseCString(const char* source, char* target)
{
    const char* p = source;

    while(*p) // find end of source
    {
        ++p;
    }
    --p; // move p back 1 from null terminator
    while(p >= source)
    {
        *target++ = *p--;
    }
    *target = '\0';
}

int main(int argc, char* argv[])
{
    char buf[1024] = {0};
    for(int i = 0; i < argc; i++)
    {
        std::cout << "original string: " << argv[i];
        reverseCString(argv[i], buf);
        std::cout << " reversed string: " << buf << std::endl;
    }
    return 0;
}