Sitting in a station waiting room, Joisino is gazing at her train ticket.
The ticket is numbered with four digits A, B, C and D in this order, each between 0 and 9 (inclusive).
In the formula A op1 B op2 C op3 D = 7, replace each of the symbols op1, op2 and op3 with + or - so that the formula holds.
The given input guarantees that there is a solution. If there are multiple solutions, any of them will be accepted.

-----Constraints-----
- 0≤A,B,C,D≤9
- All input values are integers.
- It is guaranteed that there is a solution.

-----Input-----
Input is given from Standard Input in the following format:
ABCD

-----Output-----
Print the formula you made, including the part =7.
Use the signs + and -.
Do not print a space between a digit and a sign.

-----Sample Input-----
1222

-----Sample Output-----
1+2+2+2=7

This is the only valid solution.

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