m = int(input())

for _ in range(m):
    A_i = int(input())
    ans = ''
    
    while A_i != 0:
        if A_i % 2 == 0:
            ans += 'R'
        else:
            ans += 'L'
        A_i = (A_i - 1) // 2
    
    print(ans[::-1])