2020牛客暑期多校训练营（第一场）F Infinite String Comparision

int main() {
    while(cin>>str1&&cin>>str2) {
        ll len1=strlen(str1);
        ll len2=strlen(str2);
        ll len=2*max(len1,len2);
        bool flag=0;
        for(ll i=0; i<len; i++) {
            if(str1[i%len1]==str2[i%len2]) {
                flag=1;
                continue;
            } else if(str1[i%len1]>str2[i%len2]) {
                cout<<'>'<<endl;
                flag=0;
                break;
            } else {
                cout<<'<'<<endl;
                flag=0;
                break;
            }
        }
        if(flag) {
            cout<<'='<<endl;
            continue;
        }
    }
    return 0;
}