#!/usr/bin/env node

const fs = require('fs');
const readline = require('readline');

const args = process.argv.slice(2);
const file = args.shift();

let text;

if ( file === '-' ) {
  process.stdin.resume();
  text = fs.readFileSync(0, "utf8");
} else {
  text = fs.readFileSync(file, "utf8");
}

const data = JSON.parse(text);

let out = data;
while ( args.length ) {
  out = out[args.shift()];
}

console.log(out);