#include <stdio.h>
int main()
{
int i,a,b;
while(scanf("%d %d",&a,&b)!=EOF){
int min = (a>b)?b:a;
int x=1;
if ((a%b==0)||(b%a==0)){
x=min;
}
else{
for(i=min;i>1;i--){
if(a%i==0&&b%i==0){
x=i;
break;
}
}
}
printf ("x=%d\n",x);
}
return 0;
}
12-23