main()                                                      
   {                                                           
       int  i, j, k ;                                          
       char   first_name[10] = {"VISWANATH"}  ;         
       char  second_name[10] = {"PRATAP"} ;             
       char    last_name[10] = {"SINGH"} ;              
       char   name[30] ;                                       
     /* Copy first_name into name */
for( i = 0 ; first_name[i] != '\0' ; i++ )              
          name[i] = first_name[i] ;                            
     /* End first_name with a space */
                         
       name[i] = ' ' ;                                         
     /* Copy second_name into name */
for( j = 0 ; second_name[j] != '\0' ; j++ )             
          name[i+j+1] = second_name[j] ;                       
     /* End second_name with a space */
                        
       name[i+j+1] = ' ' ;                                     
     /* Copy last_name into name */
for( k = 0 ; last_name[k] != '\0'; k++ )                
          name[i+j+k+2] = last_name[k] ;                       
     /* End name with a null character */
                      
       name[i+j+k+2] = '\0' ;                                  
       printf("\n\n") ;                                        
       printf("%s\n", name) ;                                  
   }
                  
Output 
                                                 
VISWANATH PRATAP SINGH