C :

#include<stdio.h>
#include<string.h>
int main(){
	char str[100];
	gets(str);
	printf("Hello!%s.\n",str);
    return 0;
}

C++ :

#include<iostream>
#include<cstring>
using namespace std;
string namesss;
int main()
{
	cin>>namesss;
	cout<<"Hello!"<<namesss<<'.';
	return 0;
}

Pascal :

begin
   write('Hello!');
   write('xiaoming.');
end.