7-4 jmu-python- determines whether or triangular configuration (10 minutes)

7-4 jmu-python- determines whether or triangular configuration (10 minutes)

 

Three sides of the triangle input, determines whether a triangle configuration. If it can constitute output yes, otherwise output no.

Input formats:

The direct input in a line three integers, each with a space interval between the three integers, no other additional characters.

Output formats:

Direct output yes or no, without any other additional characters.

Sample Input 1:

3 4 5

Output Sample 1:

yes

Sample Input 2:

1 2 3

Output Sample 2:

no

a,b,c=input().split()
a,b,c=eval(a),eval(b),eval(c)
if a+b>c and a+c>b and b+c>a:
    print("yes")
else:
    print("no")