M = int(input())
for i in range(M):
    a = int(input())
    a += 1
    a = format(a, 'b')
    ans = []
    l = len(a)
    for i in range(1, l):
        if a[i] == '1':
            ans.append('R')
        else:
            ans.append('L')
    print(''.join(ans))