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