m = int(input())
for _ in range(m):
    a = int(input())
    path = []
    while a > 0:
        if a % 2 == 1:
            path.append('L')
            a = (a - 1) // 2
        else:
            path.append('R')
            a = (a - 2) // 2
    print(''.join(reversed(path)))