#include <iostream> using namespace std; int main() { int n; cin>>n; int A[n]; for(int i=0 ; i<n; i++){ cin>>A[i]; } int c = 0; int sum = 0; for(int j=0 ; j<n; j = j + A[j]){ sum = sum + A[j]; c++; if(sum >= n-1){ break; } } cout<<c; }