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Matcom Online Grader
Faculty of Mathematics and Computer Science of University of Havana
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Determine if an $N$-sided closed polygon (not necessarily convex) with positive area (i.e., non degenerate) and sides of length $L_1$, $L_2$,...,$L_N$ can be drawn in a two-dimensional plane.
Input
The first line of the input contains the integer $N$ ($1 \leq N \leq 10$). The second line contains $N$ space-separated integers $1 \leq L_i \leq 100$.
Output
If an $N$-sided polygon satisfying the condition can be drawn, print Yes; otherwise, print No.
Sample test(s)
Input
4
3 8 5 1
Output
Yes
Input
4
3 8 4 1
Output
No
Input
10
1 8 10 5 8 12 34 100 11 3
Output
No