#include <iostream>
#include <cmath>
using namespace std;
void myCript(int m1, int l1, char* arr);
int main()
{
	char str[101];
	int M, L;
	int i = 0, counter = 0;
	bool flag = true;
	cin.getline(str, 101);

	while (true)
	{
		cout << "Enter M" << endl;
		cin >> M;
		if (cin.fail())
		{
			cout << "Error! Try again";
			cin.clear();
			cin.ignore(numeric_limits<std::streamsize>::max(), '\n');
			cin >> M;
		}

		else if (M > 20)
		{
			cout << "Error! Try again";
			cin.clear();
			cin.ignore(numeric_limits<std::streamsize>::max(), '\n');
			cin >> M;
		}
		else
		{
			break;
		}

	}

	while (true)
	{
		cout << "Enter L" << endl;
		cin >> L;
		if (cin.fail())
		{
			cout << "Error! Try again";
			cin.clear();
			cin.ignore(numeric_limits<std::streamsize>::max(), '\n');
			cin >> L;
		}

		else if (L > 100)
		{
			cout << "Error! Try again";
			cin.clear();
			cin.ignore(numeric_limits<std::streamsize>::max(), '\n');
			cin >> L;
		}
		else
		{
			break;
		}
	}

	while (str[i] != '\0')
	{
		i++;
	}
	for (int j = 0; j < i; j++)
	{
		if (str[j] < 32 || str[j] > 126)
		{
			flag = false;
		}
	}
	if (!flag)
	{
		cout << "invalid symbols" << endl;
	}

	cout << str;

	system("pause");

	return 0;
}
void myCript(int m, int l, char* arr)
{
  int counter = 0;
	 while (arr[counter] != '\0')
	{
    counter ++ ;
  }
	 for (int i = 0; i < counter; i++)
	{
		if (i + l > counter )
		{
			arr[i] = arr[abs(counter - i - l)];
		}
		else
		{
		  arr[i + l] = arr[i];

		}
	}
	 for (int j = 0; j < counter; j++)
	{
		arr[j] = arr[j] + m;
	}

}