#include <iostream>
using namespace std;
int strcmpi(char* S1, char* S2)
{
	int i;
	for (i = 0; S1[i] && S1[i] == S2[i] || S1[i] - 'a' == S2[i] - 'A' || S1[i] - 'A' == S2[i] - 'a'; i++)
		;
	return S1[i] - S2[i];
}



int main()
{
	char a[100] = "";
	cout << "Enter a: " << endl;
	cin >> a;

	char b[100] = "";
	cout << "Enter b: " << endl;
	cin >> b;


	cout << strcmpi(a, b);

}