m = int(input())

for _ in range(m):
    A = int(input()) + 1

    L = []
    while A > 1:
        if A % 2 == 0:
            L.append('L')
            A = A // 2
        else:
            L.append('R')
            A = (A-1) // 2
        
    print(''.join(L[::-1]))