An ancient reliquary assigns every stored relic a positive whole-number catalog code. When a relic is sealed away, the vault's engraving press first converts the catalog code to hexadecimal (uppercase, no leading zeros). The press then stamps that hexadecimal string onto the vault door using a special typeface that only has letter molds: the ten letters A through F, plus two digit look-alikes, since the press stamps the digit 0 as the letter O and the digit 1 as the letter I. The press has no mold whatsoever for any other digit (2 through 9).

Given a relic's catalog code, determine what gets stamped on the door. If every character of the hexadecimal representation is one of 0, 1, or A-F, print the resulting inscription, with every 0 replaced by O and every 1 replaced by I. Otherwise, the press cannot produce a legal seal at all, so print ERROR instead.

Input format

A single line containing one integer n, the relic's catalog code.

Output format

Print one line: either the stamped inscription (uppercase letters only), or the literal text ERROR if the hexadecimal representation of n contains any of the digits 2-9.

Constraints

• 1 <= n <= 10^12

3735928559

DEADBEEF

32

ERROR