// editor5
#include <stdio.h>

int main() {
    int n, oldVal, newVal, i, found = 0;
    scanf("%d", &n);

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

    scanf("%d %d", &oldVal, &newVal);

    // replace all occurrences of oldVal
    for (i = 0; i < n; i++) {
        if (arr[i] == oldVal) {
            arr[i] = newVal;
            found = 1;
        }
    }

    if (!found) {
        printf("Value not found");
        return 0;
    }

    // print updated list
    for (i =