OnlineJudge 3 现已推出。点此体验新版："Pairs of integers" | SDUT OnlineJudge

### "Pairs of integers"

Time Limit: 1000 ms
Memory Limit: 65536 KiB

#### Problem Description

You are to find all pairs of integers such that their sum is equal to the given integer number N and the second number results from the first one by striking out one of its digits. The first integer always has at least two digits and starts with a non-zero digit. The second integer always has one digit less than the first integer and may start with a zero digit.

#### Input

The input file consists of several test cases.

Each test case contains single integer N (10 ≤ N ≤ 10^{9}), as decribed above

#### Output

The output consists of several blocks, one for each test case.

On the first line of a block write the total number of different pairs of integers that satisfy the problem statement. On the following lines write all those pairs. Write one pair on a line in ascending order of the first integer in the pair. Each pair must be written in the following format:

`X + Y = N`

Here X, Y, and N, must be replaced with the corresponding integer numbers. There should be exactly one space on both sides of '+' and '=' characters.

#### Sample Input

302

#### Sample Output

5 251 + 51 = 302 275 + 27 = 302 276 + 26 = 302 281 + 21 = 302 301 + 01 = 302