#include<stdio.h>

int gcd(int a,int b){
  int r=a%b;
  while(r>0){
    a=b;
    b=r;
    r=a%b;
  }
  return b;
}

void run(void){
  int m,n;
  scanf("%d%d",&m,&n);
  int g=gcd(m,n);
  m/=g;
  n/=g;

  int count=0;
  while(n>1){
    count+=m/n;
    m%=n;
    int swap=m;
    m=n;
    n=swap;
    count++;
  }
  printf("%d\n",(m-1)+count);
  return;
}

int main(void){
  run();
  return 0;
}