#include <conio.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#pragma warning(disable:4996)

void main()
{
    char v[9999] = { 0 };
    int n;

    printf("Introduceti offkey= "); scanf("%d", &n);
    printf("Introduceti textul= "); scanf("%s", &v);

    printf("\n\n");
    printf("Dupa aplicarea offkey: ");

    for (int i = 0; i < strlen(v); i++) {
        if (v[i] + n >= 126) {
            printf("Eroare");
            _getch();
            exit(0);
        }
        else if(v[i]+n<=32) {
            printf("Eroare");
            _getch();
            exit(0);
        }
    }

    for (int i = 0; i < strlen(v); i++) {
        printf("%c", v[i] + n);
    }

    _getch();
    exit(0);
}