#include<iostream> #include<cstdio> //scanf()\printf() #include<cstring> #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a,b,i=1,n=0; cin>>a>>b; while(i<=a && i<=b){ if(a%i==0 && b%i==0 && n<i){ n=i; } i++; } cout<<n; return 0; }