PROGRAMMING:Printing up the table of trigonometric multiplication formulas

This problem requires any given positive integer n, print from n to 1 on the triangular multiplication formula table (see the example for details).
###Input format:
The input gives a positive integer n (1 ≤ n ≤ 9) on one line.
###Output format:
Output the upper triangle n * n part of the formula table, in which the right number of the equal sign occupies 4 digits, left aligned.
###Input example:
```in
six
```
###Output example:
```out
1*6=6 2*6=12 3*6=18 4*6=24 5*6=30 6*6=36
1*5=5 2*5=10 3*5=15 4*5=20 5*5=25
1*4=4 2*4=8 3*4=12 4*4=16
1*3=3 2*3=6 3*3=9
1*2=2 2*2=4
1*1=1
```







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