#include //#include using namespace std; //using namespace atcoder; #define all(v) v.begin(),v.end() using ll = long long; using ull = unsigned long long; using vll=vector; using vvll = vector>; using P = pair; using vp=vector>; //using mint=modint1000000007; //using mint=modint998244353; const ll INF=1ll<<60; ll mod10=1e9+7; ll mod99=998244353; const double PI = acos(-1); #define rep(i,n) for (ll i=0;i=0;--i) #define rep2(i,a,n) for (ll i=a;i=n;--i) templatebool chmax(T &a, const T &b) { if (abool chmin(T &a, const T &b) { if (b>N; vll A(N);rep(i,N) cin>>A[i]; per(i,N) A[i]-=A[0]; ll a=0; rep(i,N){ a=gcd(a,A[i]); cout<