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Question: find an index in a list

Question:find an index in a list

2cUniverse 115 Maple
list index
October 23 2023
2

I have a very simple question:

How do I find the index of an list element.

For example to find 96 in the following list which is the 25th element.

R := [1, 2, 4, 8, 16, 32, 64, 31, 62, 27, 54, 11, 22, 44, 88, 79, 61, 25, 50, 3, 6, 12, 24, 48, 96, 95, 93, 89, 81, 65, 33, 66, 35, 70, 43, 86, 75, 53, 9, 18, 36, 72, 47, 94, 91, 85, 73, 49];
max(R);
                               96

So how to find 25 ?
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