#include <iostream>
using namespace std;
const int MAX_LENGTH = 100000;
int main() {
int n, v[MAX_LENGTH + 1];
cin >> n;
for (int i = 1; i <= n ;++i) {
cin >> v[i];
}
int strPos = 1, finalPos = 0, counter = 0;
for (int i = 1; i < n; ++i) {
if (v[i] * v[i + 1] )
}
return 0;
}
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