561 B | 561 chars
import sys
from math import sqrt, pi, sin, factorial
inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = " " : [*map(int,inp().split(x))]
mfi = lambda x = " " : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def solve():
L, R, N, M = mii()
if N == M:
return "G"
left = abs(N - M) <= L
right = abs(N - M) <= R
if left and right:
return "E"
if left:
return "L"
return "R"
if __name__ == "__main__":
tc = ii()
for t in range(1, tc+1):
p(solve())