#include #include #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #define SELECTER(_1,_2,_3,SELECT,...) SELECT #define rep1(i,n) for(int i=0;i=0;--i) #define rrep2(i,a,n) for(int i=(int)(n)-1;i>=(int)a;--i) #define rrep(...) RSELECTER(__VA_ARGS__, rrep2, rrep1)(__VA_ARGS__) #define all(a) a.begin(),a.end() #define rall(a) a.rbegin(),a.rend() #define fi first #define se second #define PrintR LogOutput #ifdef _DEBUG #define Log(...) LogOutput(__VA_ARGS__) #else #define Log(...) #endif #define M_PI 3.14159265358979323846 using namespace std; using namespace atcoder; using ll=long long; using ld=long double; using pii=pair; using pll=pair; using pdd=pair; using tp=tuple; using tpll=tuple; using veci=vector; using vecpii=vector>; using vecll=vector; using vecpll=vector>; using vecpdd=vector>; using vecs=vector; using vecb=vector; using vecd=vector; using vectp=vector; using vectpll=vector; using mint=modint998244353; using mint10=modint1000000007; template istream& operator>>(istream& in, pair& a){return in >> a.first >> a.second;} template ostream& operator<<(ostream& out, const pair& a){return out << a.first << ' ' << a.second;} ostream& operator<<(ostream& out, const mint& a){return out << a.val();} ostream& operator<<(ostream& out, const mint10& a){return out << a.val();} ostream& operator<<(ostream& out, const modint& a){return out << a.val();} template ostream& operator<<(ostream& out, const vector& d){for(int i = 0 ; i < d.size() ; ++i) out << d[i] << (i == d.size() - 1 ? "" : " "); return out;} template pair operator+(const pair& a, const pair& b){return {a.fi + b.fi, a.se + b.se};} template pair operator-(const pair& a, const pair& b){return {a.fi - b.fi, a.se - b.se};} template inline bool chmax(T& a,T b){if(a inline bool chmin(T& a,T b){if(a>b) {a=b;return true;} return false;} bool Judge(int i, int j, int h, int w){return i < 0 || j < 0 || i >= h || j >= w;} bool PrintA(int i){cout<<(i ? "Yes" : "No")<::max() >> 2; constexpr int inf=numeric_limits::max() >> 1; constexpr ll MOD=998244353; const int vi[] = {0, 1, 0, -1}, vj[] = {1, 0, -1, 0}; template void LogOutput(Args&&... args){ stringstream ss; ((ss << args << ' '), ...); cout << ss.str().substr(0, ss.str().length() - 1) << endl; } template void LogOutput(vector>& data){for(auto d : data) LogOutput(d);} int main(){ ios::sync_with_stdio(false); std::cin.tie(nullptr); int n = 2; vector a(n, vecll(n)); rep(i, n) rep(j, n) cin>>a[i][j]; auto f2 = [&](){int cnt = 0;rep(i, n) rep(j, n) cnt += a[i][j] == 0;return cnt;}; auto f = [&](){swap(a[0][0], a[0][1]), swap(a[1][0], a[1][1]);}; if(a[0][0] < a[0][1]) f(); if(a[0][0] < a[1][0]) swap(a[0], a[1]); int cnt = f2(); if(!cnt){ rep(i, 2) if(a[i][0] < 0){ rep(j, 2) a[i][j] *= -1; } while(1){ if(a[0][0] < a[1][0]) swap(a[0], a[1]); if(!a[1][0]) break; ll c = a[0][0] / a[1][0]; rep(i, 2) a[0][i] -= c * a[1][i]; } cnt = f2(); rep(i, 2) a[i][1] = abs(a[i][1]); } if(cnt == 1){ rep(i, 2) if(a[0][i] == 0) swap(a[0], a[1]); rep(i, 2) if(a[i][1] == 0) f(); rep(i, 2) if(a[0][i] < 0){ rep(j, 2) a[j][i] *= -1; } while(1){ if(a[0][0] < a[0][1]) f(); if(!a[0][1]) break; ll c = a[0][0] / a[0][1]; rep(i, 2) a[i][0] -= c * a[i][1]; } cnt = f2(); rep(i, 2) rep(j, 2) a[i][j] = abs(a[i][j]); } rep(i, 2) rep(j, 2) if(a[i][j] < 0) a[i][j] *= -1; if(cnt == 2){ if(a[0][0] < a[0][1]) f(); int u = 1; rep(i, 2) if(a[i][0] && a[i][1]){ ll t = gcd(a[i][0], a[i][1]); rep(j, 2) rep(k, 2) a[j][k] = 0; a[0][0] = t; u = 0; break; } if(u){ ll c = gcd(a[0][0], a[1][1]), d = a[0][0] * a[1][1] / c; rep(i, 2) rep(j, 2) a[i][j] = 0; a[0][0] = c, a[1][1] = d; } } if(a[0][0] == 0) swap(a[0][0], a[1][1]); cout<