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#!/usr/local/bin/node
//
// See ../README.md
//
//
// Run as: node ch-2.js < input-file
//
let NR_OF_DIGITS = 10
require ('readline')
. createInterface ({input: process . stdin})
. on ('line', _ => {
//
// Parse the input: count the digits
//
let digits = []
for (let i = 0; i < NR_OF_DIGITS; i ++) {
digits [i] = 0
}
_ . split (/\s+/) . map (_ => {digits [+_] ++})
//
// Find the smallest even number
//
let last = -1;
for (let i = 0; i < NR_OF_DIGITS && last < 0; i += 2) {
if (digits [i] > 0) {
last = i
digits [i] --
}
}
//
// Skip if there are no even digits in the input
//
if (last < 0) {
return
}
//
// Create the output: print the remaining numbers from high to low
//
let out = ""
for (let i = NR_OF_DIGITS - 1; i >= 0; i --) {
for (let j = 0; j < digits [i]; j ++) {
out = out + i . toString ()
}
}
console . log (out + last . toString ())
})
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