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22 lines
410 B
C++
22 lines
410 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int main() {
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int n, a[5], t, o;
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cin >> n >> a[0] >> a[1] >> a[2];
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o = (a[0] % 2 + a[1] % 2 + a[2] % 2) / 2;
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for (int i = 0; i < n; i++) {
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if (i >= 3) {
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cin >> t;
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} else {
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t = a[i];
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}
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if (t % 2 != o) {
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cout << i + 1 << endl;
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return 0;
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}
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}
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return 0;
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}
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