#include <iostream>
using namespace std;
int strcmpi(char* S1, char* S2)
{
	int frstnum = '0';
	int lstnum = '9';
	int i = 0;
	bool flag = true;
	while(S1[i] && S2[i] && flag)
	{
		if ((S1[i] >= frstnum && S1[i] <= lstnum && S2[i] >= frstnum && S2[i] <= lstnum) && S1[i] == S2[i])
			i++;
		else
			if (S1[i] < lstnum && S2[i] > lstnum || S2[i] < lstnum && S1[i] > lstnum)
				flag = false;
			else
				if (S1[i] == S2[i])
					i++;
				else
					if (S1[i] - 'a' == S2[i] - 'A')
						i++;
					else
						if (S1[i] - 'A' == S2[i] - 'a')
							i++;
						else
							flag = false;


	}
	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);
}