#include <stdio.h>
#include <string.h>

int main(void) {
    char first[20], last[20], full[40];  
    printf("Enter your first name: ");
    gets(first);
    printf("Enter your last  name: ");
    gets(last);    
    strcpy(full, first); 
    strcat(full, " ");
    strcat(full, last);       
    printf("Your full name is: ");
    puts(full);
    return 0;
}