A. Juan's Femur
time limit per test
1 second
memory limit per test
256 megabytes
input
standard input
output
standard output

As every March 29th, Juan leaves his house and heads towards the home of Jacobo, his best buddy, to celebrate the date in style, as one would expect. However, a malicious step stands in his way. In an unexpected turn of events, the step causes Juan to fall, a spectacle both dramatic and embarrassing, while it lets out a stony laugh that fits its role as the protagonist's arch-nemesis. As a result of the fall, Juan breaks his femur in two different places, resulting in three fragments of lengths $$$a$$$, $$$b$$$, and $$$c$$$.

While waiting for medical services, Juan wonders if he could form a non-degenerate triangle with these bone fragments.

Input

The input consists of several cases. Each case consists of three natural numbers $$$a, b, c$$$ separated by spaces. Each case ends with a newline.

Output

Print one line per case with the word "si" if Juan can form a non-degenerate triangle with the bone fragments and the word "no" otherwise.

Scoring

$$$0 \leq a, b, c \lt 10^8$$$

Example
Input
3 4 5
9 2 4
Output
si
no