#include <stdio.h>
int main()
{
long n,m,g,h,x;
long yinshu,beishu;
scanf("%ld %ld",&n,&m);
g=m;
h=n;
if(n>=m)
{
while(n%m !=0)
{x=n;
n=m;
m=x%m;
}
yinshu =m;
beishu = h*g/m;
printf("%ld",yinshu+beishu);
}
if(m>n)
{
while(m%n !=0)
{ x=m;
m =n;
n =x%n;
}
yinshu=n;
beishu =h*g/n;
printf("%ld",yinshu+beishu);
}
}

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