#include "declaration.h"

int menu(int lastNumb) {
    int number, ret;
    printf("Modes of the machine:\n"
           "1. Load tape \n"
           "2. Run\n"
           "3. Run step\n"
           "4. Exit\n");
    while (1) {
        printf("\nInput ordinal number of modes(1->%d)", lastNumb);
        ret = scanf("%d", &number);;
        if (ret == 1 && (number >= 1 && number <= lastNumb)) break;
        fflush(stdin);
        printf("Error. Number must be in the interval [1..%d]", lastNumb);
        break;
    }
    return number;
}