import sys
input = sys.stdin.readline
while True:
lines = list(map(int, input().split(" ")))
lines.sort()
a, b, c = lines[0], lines[1], lines[2]
if a == b == c == 0:
break
if c >= a + b:
print("Invalid")
elif a == b and b == c:
print("Equilateral")
elif a != b and b != c and a != c:
print("Scalene")
else:
print("Isosceles")
Python
복사