#include <stdio.h>
#include <stdlib.h>
int isValidFloat(const char *str) {#include <stdio.h>

int main() {
    int n;
    if (scanf("%d", &n) != 1 || n < 0 || n > 1000) {
        printf("Invalid input\n");
        return 0;
    }

    double arr[1001];  // Allow space for the new transaction

    for (int i = 0; i < n; ++i) {
        if (scanf("%lf", &arr[i]) != 1) {
            printf("Invalid input\n");
            return 0;
        }
    }

    double newValue;
    if (scanf("%lf", &newValue) != 1) {
        printf("Invalid input\n");
        return 0;
    }

    // Append new value using the required line
    arr[n] = newValue;
    n++;

    // Print without forcing decimal places
    for (int i = 0; i < n; ++i) {
        printf("%g", arr[i]);  // `%g` avoids unnecessary trailing zeros
        if (i < n - 1) {
            printf(" ");
        }
    }
    printf("\n");

    return 0;
}