s1 = int(input("enter your number"))
s2 = int(input("enter your number"))
s3 = int(input("enter your number"))
r = s1 + s2
if r+s3==180:
    print("possible tringle")
else:
    print("not possible tringle")

# It will check that it's sum of three sides equal to 180' so it will possible triangle







