Printing Snails - Square

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Time limit1sMemory limit512 MB

Summary

Given N, print a hollow N by N square outline of snail symbols, N+2 snails on the top and bottom lines and two snails per middle line.

Problem

Print $N+2$ snails on the first line and on line $N+2$ .

For lines 2 through $N+1$ , print $2$ snails and $N$ spaces.

The first line gives an integer $N$ ( $1 \leq N \leq 100$ ).

Print snails in order from line 1 through line $N+2$ .