#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; #define ll long long #define ld long double #define EPS 0.0000000001 #define INF 1e9 #define MOD 1000000007 #define rep(i,n) for(i=0;i vi; typedef pair pii; int main(void) { int i,j; int n; cin>>n; vi a(n); rep(i,n)cin>>a[i]; int k=a[0]; int r=1; cout<<1<