3  #include <stdio.h>
#include <string.h>
#include <ctype.h>

#define MAX 1000
#define MAX_LEN 101

int containsDigit(const char *str) {
    for (int i = 0; str[i]; i++) {
        if (isdigit(str[i])) return 1;
    }
    return 0;
}

int main() {
    int n;
    char tasks[MAX + 1][MAX_LEN]; 
    char newTask[MAX_LEN];
    if (scanf("%d", &n) != 1 || n < 0 || n > MAX) {
        printf("Invalid input\n");
        return 0;
    }
    for (int i = 0; i < n; i++) {
        if (scanf("%s", tasks[i]) != 1) {
            printf("Invalid input\n");
            return 0;
        }
    }

    if (scanf("%s", newTask) != 1) {
        printf("Invalid input\n");
        return 0;
    }
    if (containsDigit(newTask)) {
        printf("Invalid input\n");
        return 0;
    }
    for (int i = n; i > 0; i--) {
        strcpy(tasks[i], tasks[i - 1]);
    }
    strcpy(tasks[0], newTask);
    n++; 
    for (int i = 0; i < n; i++) {
        printf("%s ", tasks[i]);
    }
    printf("\n");

    return 0;
}