#include<iostream>
using namespace std;
void Strcat(char* current, const char* extra) {
while (*current != '\0') {
++current;
}
while (*extra != '\0') {
*current++ = *extra++;
}
*current = *extra;
}
int main() {
char string1[105],string2[105];
cin>>string1;
cin>>string2;
Strcat(string1, string2);
printf("%s\n", string1);
return 0;
}
int Strlen(const char *s)
{
if(s == NULL){
return 0;
}
int len = 0;
while(*s++ != '\0'){
len++;
}
return len;
}
int Strlen(const char *str)
{
assert(str != NULL);
if (*str == '\0')
{
return 0;
}
else
{
return 1 + strlen(str + 1);
}
}
int Strcmp( char* str1, char* str2)
{
assert(str1);
assert(str2);
while (*str1 == *str2)
{
if (*str1 == '\0'||( *str2='\0'))
return 0;
str1++;
str2++;
}
return *str1 - *str2;
}