Answer:
4396
Step-by-step explanation:
The following transformations are defined:
R: {1, 2, 3, 4} ⇒ {3, 2, 1, 4}
B: {1, 2, 3, 4} ⇒ {2, 1, 3, 4}
Y: {1, 2, 3, 4} ⇒ {1, 4, 3, 2}
Then the sequence RYBRY performs the transformation ...
{1, 2, 3, 4} ⇒ {3, 2, 1, 4} ⇒ {3, 4, 1, 2} ⇒ {4, 3, 1, 2} ⇒ {1, 3, 4, 2} ⇒ {1, 2, 4, 3}
And the sequence BRYB performs the transformation ...
{1, 2, 3, 4} ⇒ {2, 1, 3, 4} ⇒ {3, 1, 2, 4} ⇒ {3, 4, 2, 1} ⇒ {4, 3, 2, 1}
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If we swap the last two digits of the first result, we will get the original number back: 6934.
If we swap the digits end-for-end, we will then get the result of the second transform: 4396.
Had Ali performed the second sequence on her original number, she would have gotten 4396.
