122. Count and Say
MediumSimulation
Term 1 is 1. Each next term describes the previous one: 1 → one 1 → 11 → two 1s → 21 → 1211 … Print term n.
Input format
A single integer n.
Output format
The n-th term.
Example 1
Input
1
Output
1
Example 2
Input
4
Output
1211
Constraints
1 ≤ n ≤ 30
Read input from standard input and print the answer to standard output. Your code is judged against 4 test cases, most of them hidden.
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