Problems
Write a program that receives the desired range of multiplication tables and prints the multiplication tables for that interval.
[Processing Conditions]
(1) Receive the starting number and the ending number of the interval.
(2) The entered interval does not necessarily require that the first input value be smaller than the last input value.
That is, the multiplication tables must be printed in the same increasing or decreasing order as the entered interval.
Input
Receive the starting range s and the ending range e of the multiplication table.
s and e must be integers between 2 and 9, and if an entered value is outside the given range, print INPUT ERROR! and receive s and e again.
Input may be given multiple times.
After one result is printed, the program terminates.
Output
Print the multiplication tables between the starting range and the ending range, and separate all numbers and operators with spaces.
They must be aligned as shown in the output example.
Separate each multiplication table with three spaces.
Example #1
3 4
3 * 1 = 3 4 * 1 = 4
3 * 2 = 6 4 * 2 = 8
3 * 3 = 9 4 * 3 = 12
3 * 4 = 12 4 * 4 = 16
3 * 5 = 15 4 * 5 = 20
3 * 6 = 18 4 * 6 = 24
3 * 7 = 21 4 * 7 = 28
3 * 8 = 24 4 * 8 = 32
3 * 9 = 27 4 * 9 = 36
Example #2
1 6
11 5
9 6
INPUT ERROR!
INPUT ERROR!
9 * 1 = 9 8 * 1 = 8 7 * 1 = 7 6 * 1 = 6
9 * 2 = 18 8 * 2 = 16 7 * 2 = 14 6 * 2 = 12
9 * 3 = 27 8 * 3 = 24 7 * 3 = 21 6 * 3 = 18
9 * 4 = 36 8 * 4 = 32 7 * 4 = 28 6 * 4 = 24
9 * 5 = 45 8 * 5 = 40 7 * 5 = 35 6 * 5 = 30
9 * 6 = 54 8 * 6 = 48 7 * 6 = 42 6 * 6 = 36
9 * 7 = 63 8 * 7 = 56 7 * 7 = 49 6 * 7 = 42
9 * 8 = 72 8 * 8 = 64 7 * 8 = 56 6 * 8 = 48
9 * 9 = 81 8 * 9 = 72 7 * 9 = 63 6 * 9 = 54
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