#!/usr/bin/env node

const flatten = require('ramda/src/flatten');

let input = [];

process.stdin.resume();
process.stdin.setEncoding('utf8');

process.stdin.on('data', (data) => {
  input.push(data);
});

process.stdin.on('end', () => {
  const str = input.join('');
  let events = JSON.parse(str);

  events = flatten(events);

  console.log(JSON.stringify(events));
});