Untitled

#include <iostream>
#include <math.h>
using namespace std;

int main()
{
    int a, b, i;
    cin >> a >> b;
    if(a == b)
    {
        cout << a;
    }
    else if(a % b == 0)
    {
        cout << b;
    }
    else if(b % a == 0)
    {
        cout << a;
    }
    else if(a < b)
    {
        if(b % ( a / 2) == 0 & a % 2 == 0)
        {
            cout << a / 2;
        }
        else
        {
        i = a / 3;
        while(i >= 1)
        {
            if(a % i == 0 & b % i == 0)
            {
                cout << i;
                break;
            }
            else
            {
                i--;
            }
        }
        }
    }
    else
    {
        if(a % ( b / 2) == 0 & b % 2 == 0)
        {
            cout << b / 2;
        }
        else
        {
        i = b / 2;
        while(i >= 1)
        {
            if(a % i == 0 & b % i == 0)
            {
                cout << i;
                break;
            }
            else
            {
                i--;
            }
        }
        }
    }

    return 0;
}