#include <iostream>
using namespace std;
int main() {
int i, length1, length2;
string s1, s2;
s1 = "I have a dream.";
s2 = "I Have A Dream.";
length1 = s1.size();
length2 = s2.size();
for (i = 0; i < length1; i++)
if (s1[i] >= 'a' && s1[i] <= 'z')
s1[i] -= 'a' - 'A';
for (i = 0; i < length2; i++)
if (s2[i] >= 'a' && s2[i] <= 'z')
s2[i] -= 'a' - 'A';
if (s1 == s2)
cout << "=" << endl;
else if (s1 > s2)
cout << ">" << endl;
else
cout << "<" << endl;
return 0;
}
输出：_________
