#include <stdio.h>

int main() {
    int n, arr[100], first, second;

    printf("Enter number of elements: ");
    scanf("%d", &n);

    if (n < 2) {
        printf("At least two elements are required.\n");
        return 1;
    }

    printf("Enter %d elements:\n", n);
    for(int i = 0; i < n; i++) {
        scanf("%d", &arr[i]);
    }

    // Initialize first and second
    if (arr[0] > arr[1]) {
        first = arr[0];
        second = arr[1];
    } else {
        first = arr[1];
        second = arr[0];
    }

    for(int i = 2; i < n; i++) {
        if (arr[i] > first) {
            second = first;
            first = arr[i];
        } else if (arr[i] > second && arr[i] != first) {
            second = arr[i];
        }
    }

    if (first == second) {
        printf("No second largest element found.\n");
    } else {
        printf("Second largest element: %d\n", second);
    }

    return 0;
}