#include <iostream>
using namespace std;
int main ()
{ 
    int C,I,x,z;
    scanf ("%d%d",&C,&I );
    z=I;
    for (x=C*I;z>(I-1);x--){
        z=x/C;
        if (z%C>0) z=z+1;    

}
    x=z*C;
    printf("%d\n",x+1);   
    return 0;
}