#include <stdio.h>
#include <stdlib.h>
#include <math.h>

typedef struct
{
    int x,y;
}sPoint;

int max(int a, int b)
{
    return a > b ? a : b;
}

int min(int a, int b)
{
    return a < b ? a : b;
}

int vectorsModule (sPoint first, sPoint second)
{
    return sqrt(pow((first.x-second.x),2)+pow((first.y-second.y),2));
}

int main()
{
    FILE *fin  = fopen("input.txt", "r");
    FILE *fout = fopen("output.txt", "w");

    sPoint center, point, corner1, corner2, corner;
    int rcenter,rcorner;
    fscanf(fin, "%d%d%d%d%d%d", &corner1.x, &corner1.y, &corner2.x, &corner2.y, &point.x, &point.y);

    center.x =(corner1.x+corner2.x) / 2;
    center.y =(corner1.y + corner2.y) / 2;

    rcenter = vectorsModule(center, point);


    corner.x = point.x > center.x ? max(corner1.x, corner2.x) : min(corner1.x, corner2.x);
    corner.y = point.y > center.y ? max(corner1.y, corner2.y) : min(corner1.y, corner2.y);

    rcorner = vectorsModule(corner, point);

    fprintf(fout, "%s", rcenter <= rcorner ? "CENTER" : "CORNER");

    fclose(fin);
    fclose(fout);

    return 0;
}