string

#include <iostream>  
using namespace std;  
int main ()  
{  
string str1, str2, result; // declare string variables  
int i;  
cout <<"  Enter the first string: ";  
cin >> str1; // take string  
cout << "  Enter the second string: ";  
cin >> str2; // take second string  
// use for loop to enter the characters of the str1 into result string   
for ( i = 0; i < str1.size(); i++)  
{  
result = result + str1[i]; // add character of the str1 into result   
}   
  
// use for loop to enter the characters of the str2 into result string   
for ( i = 0; i < str2.size(); i++)  
{  
result = result + str2[i]; // add character of the str2 into result   
}  
cout << " The Concatenation of the string " << str1 << " and " << str2 << " is " <<result;  
return 0;  
}