#include <stdio.h>
int main() {
int n, num;
int even = 0, odd = 0;
scanf("%d", &n);
for(int i = 0; i < n; i++) {
scanf("%d", &num);
if(num % 2 == 0) even++;
else odd++;
if(odd > 2) {
printf("YES\n");
return 0;
} else if(odd > 0 && even > 1) {
printf("YES\n");
return 0;
}
}
printf("NO\n");
return 0;
}

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