Package for this problem was not updated by the problem writer or Codeforces administration after we’ve upgraded the judging servers. To adjust the time limit constraint, solution execution time will be multiplied by 2. For example, if your solution works for 400 ms on judging servers, then value 800 ms will be displayed and used to determine the verdict.

Virtual contest is a way to take part in past contest, as close as possible to participation on time. It is supported only ICPC mode for virtual contests.
If you've seen these problems, a virtual contest is not for you - solve these problems in the archive.
If you just want to solve some problem from a contest, a virtual contest is not for you - solve this problem in the archive.
Never use someone else's code, read the tutorials or communicate with other person during a virtual contest.

No tag edit access

A. Domino

time limit per test

0.5 secondmemory limit per test

256 megabytesinput

standard inputoutput

standard outputLittle Gennady was presented with a set of domino for his birthday. The set consists of 28 different dominoes of size 2 × 1. Both halves of each domino contain one digit from 0 to 6.

0-0 0-1 0-2 0-3 0-4 0-5 0-6

1-1 1-2 1-3 1-4 1-5 1-6

2-2 2-3 2-4 2-5 2-6

3-3 3-4 3-5 3-6

4-4 4-5 4-6

5-5 5-6

6-6

The figure that consists of 28 dominoes is called magic, if it can be fully covered with 14 non-intersecting squares of size 2 × 2 so that each square contained four equal numbers. Every time Gennady assembles a magic figure, some magic properties of the set appear — he wins the next contest. Gennady noticed that he can't assemble a figure that has already been assembled, otherwise someone else wins the contest.

Gennady chose a checked field of size *n* × *m* and put there rectangular chips of sizes 1 × 2 and 2 × 1. Each chip fully occupies exactly two neighboring squares of the field. Those chips do not overlap but they can touch each other. Overall the field has exactly 28 chips, equal to the number of dominoes in the set. Now Gennady wants to replace each chip with a domino so that a magic figure appeared as a result. Different chips should be replaced by different dominoes. Determine in what number of contests Gennady can win over at the given position of the chips. You are also required to find one of the possible ways of replacing chips with dominoes to win the next Codeforces round.

Input

The first line contains two positive integers *n* and *m* (1 ≤ *n*, *m* ≤ 30). Each of the following *n* lines contains *m* characters, which is the position of chips on the field. The dots stand for empty spaces, Latin letters from "a" to "z" and "A", "B" stand for the positions of the chips. There are exactly 28 chips on the field. The squares covered by the same chip are marked by the same letter, different chips are marked by different letters. It is guaranteed that the field's description is correct.

It is also guaranteed that at least one solution exists.

Output

Print on the first line the number of ways to replace chips with dominoes to get a magic figure. That is the total number of contests that can be won using this arrangement of the chips. Next *n* lines containing *m* characters each, should contain a field from dots and numbers from 0 to 6 — any of the possible solutions. All dominoes should be different.

Examples

Input

8 8

.aabbcc.

.defghi.

kdefghij

klmnopqj

.lmnopq.

.rstuvw.

xrstuvwy

xzzAABBy

Output

10080

.001122.

.001122.

33440055

33440055

.225566.

.225566.

66113344

66113344

Codeforces (c) Copyright 2010-2020 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: Jan/29/2020 06:38:12 (h1).

Desktop version, switch to mobile version.

Supported by

User lists

Name |
---|