#include <iostream>
#include <iomanip>
#include <cmath>

using namespace std;
long double ax, ay, bx, by, cx, cy, distToB, distToC;
long double eps = 1e-9;

int main() {
    cin >> ax >> ay >> bx >> by >> cx >> cy;
    distToB = sqrt((ax - bx) * (ax - bx) + (ay - by) * (ay - by));
    distToC = sqrt((ax - cx) * (ax - cx) + (ay - cy) * (ay - cy));
    if (fabs(distToB - distToC) < eps) {
        cout << "equal " << fixed << setprecision(10) << "\n" << distToB;
    }
    else if (distToB > distToC) {
        cout << "C " << fixed << setprecision(10) << "\n" << distToC;
    }
    else {
        cout << "B " << fixed << setprecision(10) << "\n" << distToB;
    }

    return 0;
}