#include using namespace std; #define int long long #define vi vector #define vvi vector #define pb push_back #define P pair #define PP pair #define fi first #define se second #define INF 1e9 #define MOD 1000000007 #define REP(i,n) for(int i=0;i=0;i--) #define FOR(i,m,n) for(int i=m;i>n; int ans=0; for(int i=1;i*i<=n;i++){ if(n%i==0){ ans++; if(i*i!=n)ans++; } } return 0; }