m=int(input ())
A=[int(input(i)) for i in range(m)]
for i in range (m):
    a=A[i]
    p=""
    while a>0:
        if a%2==1:
            p+="R"
        else:
            p+="L"
        a+=1
        a//=2
        a-=1
    print (p)