#include <stdlib.h>
#include <stdio.h>
#include <math.h>
typedef struct
{
    double x, y;
}Punct2D;

double distanta(Punct2D A, Punct2D B)
{
    return sqrt(((A.x - B.x) * (A.x - B.x)) + (A.y - B.y)*(A.y - B.y));
}

void getMatrix(Punct2D *vec, double ***mat, int N)
{
    (*mat) = (double**)malloc(sizeof(double*) * N);
    if(!(*mat))
    {
        printf("Eroare la alocare");
        exit(1);
    }
    for(int i = 0; i < N; ++i)
    {
        (*mat)[i] = (double*)malloc(sizeof(double)*N);
        if(!(*mat)[i])
        {
            printf("Eroare la alocare");
            exit(1);
        }
    }
    for(int i = 0; i < N; ++i)
    {
        for(int j = 0; j < N; ++j)
        {
            (*mat)[i][j] = distanta(vec[i], vec[j]);
        }
    }
}

int main()
{
    int N;
    double **mat;
    Punct2D *vec;
    FILE *fi = fopen("input.txt", "rt");
    fscanf(fi, "%d", &N);
    vec = (Punct2D*)malloc(N * sizeof(Punct2D));
    if(!vec)
    {
        printf("Eroare la alocare");
        exit(1);
    }
    for(int i = 0; i < N; ++i)
    {
        fscanf(fi, "%lf%lf", &vec[i].x, &vec[i].y);
    }
    getMatrix(vec, &mat, N);
    FILE *fo = fopen("output.txt", "wt");
    for(int i = 0; i < N; ++i)
    {
        fprintf(fo, "\n");
        for(int j = 0; j < N; ++j)
        {
            fprintf(fo, "%lf ", mat[i][j]);
        }
    }
}