main()
{int a,m,n,sum=0;long b,c=0
printf("input m,n");
scanf("%d,%d",&n,&m);
for(a=1;a<=(m<n)?m:n;a++)
if(m%a==0&&n%a==0)sum=a;
b=m*n;
for(c=(m>n)?m:n;c<=b;a++)
if(c%m==0&&c%n==0)break;
printf("%d,%ld",sum,c);}