Home

Contest: Task: Related: TaskB TaskD

Score : $300$ points

Problem Statement

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 1

1222

Sample Output 1

1+2+2+2=7

This is the only valid solution.

Sample Input 2

0290

Sample Output 2

0-2+9+0=7

$0 - 2 + 9 - 0 = 7$ is also a valid solution.

Sample Input 3

3242

Sample Output 3

3+2+4-2=7