str_locate_nth() worksWhen `string` has length greater than 1, `pattern` must either be length 1 or have the same length as `string`.
x Your `string` has length 2.
x Your `pattern` has length 3.
When `string` has length greater than 1, `n` must either be length 1 or have the same length as `string`.
x Your `string` has length 2.
x Your `n` has length 5.
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