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@ -3,10 +3,10 @@ |
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### Instructions |
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### Instructions |
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Write a program that prints the previous letter and the next letter of the Latin alphabet. |
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Write a program that prints the previous letter and the next letter of the Latin alphabet. |
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- If the number of arguments is different from 1, print (`'\n'`). |
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- If the number of arguments is different from `1`, print a new line `\n`. |
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- If the length of the argument is different from 1, print (`'\n'`) |
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- If the length of the argument is different from `1`, print a new line `\n`. |
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- If the argument is not a letter, print (`'\n'`) |
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- If the argument is not a letter, print a new line `\n`. |
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- There are no letters to print before 'a' or after 'z'. |
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- There are no letters to print before `a` or after `z`. |
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### Usage |
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### Usage |
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