#include <string>
#include <vector>

using namespace std;

int solution(vector<vector<int>> dots) {
    int answer = 0;
    
    // 뭐여 실수만 되네?
    double dx = dots[0][0] - dots[1][0];
    double dy = dots[0][1] - dots[1][1];
    double dx2 = dots[2][0] - dots[3][0];
    double dy2 = dots[2][1] - dots[3][1];
    
    if (dx/dy == dx2/dy2)
        return 1;
    
    dx = dots[0][0] - dots[2][0];
    dy = dots[0][1] - dots[2][1];
    dx2 = dots[1][0] - dots[3][0];
    dy2 = dots[1][1] - dots[3][1];
    
    if (dx/dy == dx2/dy2)
        return 1;
    
    dx = dots[0][0] - dots[3][0];
    dy = dots[0][1] - dots[3][1];
    dx2 = dots[1][0] - dots[2][0];
    dy2 = dots[1][1] - dots[2][1];
    
    if (dx/dy == dx2/dy2)
        return 1;
    
    return answer;
}