'use strict';

const countPossibleAttacks = require('./count-possible-atacks');

main();

// Complete a funcao abaixo:

function ataquesRainha(n, k, l_r, c_r, obstaculos) {

return countPossibleAttacks(n, l_r, c_r, obstaculos);

}

function main() {

console.log("Inicio...\n");

//OBS: npm install readline-sync

var readlineSync = require('readline-sync');

const nk = readlineSync.question().split(' ');

const n = parseInt(nk[0], 10);

const k = parseInt(nk[1], 10);

const l_rC_r = readlineSync.question().split(' ');

const l_r = parseInt(l_rC_r[0], 10);

const c_r = parseInt(l_rC_r[1], 10);

var obstaculos;

if (k > 0) {

obstaculos = Array(k);

}

for (let i = 0; i < k; i++) {

obstaculos[i] = readlineSync.question().split(' ').map(obstaculosTemp => parseInt(obstaculosTemp, 10));

}

console.log("Tabuleiro: " + n + "x" + n);

console.log("Rainha: " + l_r + ", " + c_r);

console.log("Obstaculos: " + obstaculos);

let result = ataquesRainha(n, k, l_r, c_r, obstaculos);

console.log("Ataques Rainha: " + result);

}