import numpy



A = int(eval(input()))

S = eval(input())



if A >= 3200:

    print(S)

else:

    print("red")
A = int(eval(input()))

S = eval(input())



if A >= 3200:

    print(S)

else:

    print("red")
import numpy

A = int(eval(input()))
S = eval(input())
if A >= 3200:
    print(S)
else:
    print("red")

A = int(eval(input()))
S = eval(input())
if A >= 3200:
    print(S)
else:
    print("red")

-import numpy -