43 lines
940 B
Markdown
43 lines
940 B
Markdown
---
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type: challenge
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title: "The Message"
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xp: 50
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duration: 25
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difficulty: 2
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---
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# The Message
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> **[INCOMING — Mission Control, Earth]**
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>
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> Cadet, a string is a *sequence of characters*. You can pick any
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> one out by its position (its *index*).
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>
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> Indexes start at 0:
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>
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> ```
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> M I S S I O N
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> 0 1 2 3 4 5 6
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> ```
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>
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> Negative indexes count back from the end. `s[-1]` is the last
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> character.
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>
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> Strings are *immutable* — you can read any character, but you can't
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> change one in place. To "modify" a string, you build a new one.
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>
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> Implement `info(s)` that returns a dict with four keys: `first`,
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> `sixth`, `last`, `length`.
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>
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> [END TRANSMISSION]
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## Your Task
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Open `starter/starter.py`. Use `s[0]`, `s[5]`, `s[-1]`, and `len(s)`
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to fill in the dict.
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## Objectives
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- `info("MISSION-CONTROL-7")` returns `{"first": "M", "sixth": "O", "last": "7", "length": 17}`
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- Works for any non-empty string of length ≥ 6
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