Question #14504

Write a program to solve a set of magic formula.
A magic formula is obtained by transforming an ordinary formula like 120 + 456 = 576 into ZAD + REC = EFC. The transformation is
done by setting 1 to Z, 2 to A, 0 to D, 4 to R, 5 to E, 6 to C, and 7 to F.
Now given a set of magic formula, find the digits represented by the letters appearing in the formula. Note that there will be at most 10 different upper case letters in these formula, the leading letter of all numbers could not be 0, and different letters represent different digits.
For example, the Z, R, and E could not be 0 in ZAD + REC = EFI, and all Z, A, D, R, E, C, F, and I represent different digits. It is also guaranteed that there will be exactly one set of solution. The magic could be addition (+), subtraction (-), or multiplication (*). The number of magic formula is no more than 3, the number of digits of every number is no more than 5, and all numbers are positive.
Input Format
The first line contains a integer N, which is the number of magic formula (ranged from 1 to 3, both inclusive)
And each of the following N lines contains a magic formula. The format of magic formula is
lvalue op rvalue = result
where lvalue, rvalue, and result are strings with upper case letters, and op is the operator (either +, -, or * ).
Note that they are seperated by exactly one space.
Output Format
For each magic formula, your program should output the ordinary formula.
Each formula a line with the same order of original formula, and seperate each number and operator by exactly one space.
Example
Sample Input:
Sample Output:
1
SEND + MORE = MONEY
9567 + 1085 = 10652
3
MADE + MEAD = EDAM
EME * EME = CCDCC
HK - GF = FC
1692 + 1269 = 2961
212 * 212 = 44944
87 - 53 = 34

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