import * as std from "std";

var data = std.loadFile("11.txt").trim().split('n');
for (var i = 0; i < data.length; i++) {
  data[i] = data[i].split(' ');
  data[i] = data[i].map(x=>Number(x));
}

var high = 0;

data.forEach(function(line) {
  for (var i = 0; i < line.length-4; i++) {
    var n = line.slice(i,i+4).reduce((a,c) => a *= c);
    high = n > high ? n : high;
  }
});

for (var i = 0; i < data[0].length-4; i++) {
  for (var j = 0; j < data[0].length; j++) {
    console.log(`${i},${j}`);  
    var n = data[i][j]*data[i+1][j]*data[i+2][j]*data[i+3][j];
    console.log(`${i},${j}`);  
    high = n > high ? n : high;
  }
}

console.log(high);