Why is this code bringing 1as the output??

Question

#include <iostream>
using namespace std;

int main()
{
int a;
a=1;
do {
cout << a << endl;
cin>> a;
a++;
} while(a <= 9);

return 0;
}

Answer 1

Because variable a intialized in 1 and its value outputs first.

The code outputs 1 and waits for user input.
Enter any number to continue execution.

Answer 2

Thanks