#include #include using namespace std; using namespace atcoder; using ll = long long; using mint = modint998244353; #define rep(i,n) for (int i = 0; i < n; i++) #define rrep(i,n) for (int i = n-1; i >= 0; i--) #define rep2(i,a,b) for (int i = a; i < b; i++) #define rrep2(i,a,b) for (int i = a-1; i >= b; i--) #define rep3(i,a,b,c) for (int i = a; i < b; i+=c) #define rrep3(i,a,b,c) for (int i = a-1; i >= b; i-=c) #define all(v) v.begin(),v.end() #define rall(v) v.rbegin(),v.rend() template bool chmax(T &a, T b){if (a < b){a = b;return true;} else return false;} template bool chmin(T &a, T b){if (a > b){a = b;return true;} else return false;} ll p,q; int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); cin>>p>>q; ll g1=gcd(p-1,q-1),g2=gcd(p,q-1); cout<<(p-1)/g1+(q-1)/g1+p/g2+(q-1)/g2<<"\n"; }