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

char* ptr(char *string_a, char *string_b)
{
	int i;
   for(i=0; string_a[i]!='\0'; ++i);
       for(int j=0; string_b[j]!='\0'; ++j, ++i)
       {
          string_a[i]=string_b[j];
       }
    string_a[i]='\0';
	return string_a;
}
int main (void)
{
    char string_a[250];
    char string_b[250];
    puts(" -- DIGITE UMA PALAVRA -- ");
    gets(string_a);
    puts(" -- DIGITE UMA PALAVRA -- ");
    gets(string_b);
    puts(ptr(string_a,string_b));
    return 0;
}