m = int(input())
A = [int(input()) for _ in range(m)]

ans = []
for i in range(m):
    a = A[i]
    l = []
    while a:
        if a % 2 == 0:
            l.append('R')
            a = a//2 - 1
        else:
            l.append('L')
            a = a//2
    l.reverse()
    ans.append(''.join(l))
print(*ans, sep='\n')