t = int(input())

q = -1
ANS = []
for i in range(t):
    r = i % 4
    if r == 0:
        if q <= 2:
            ANS.append('R')
        elif q == 3 or q == 7:
            ANS.append('U')
        else:
            ANS.append('L')
    elif r == 1:
        if q <= 2:
            ANS.append('L')
        elif q == 3 or q == 7:
            ANS.append('U')
        else:
            ANS.append('R')
    elif r == 2:
        if q <= 2:
            ANS.append('R')
        elif q == 3 or q == 7:
            ANS.append('D')
        else:
            ANS.append('L')
    else:
        if q <= 1:
            ANS.append('D')
        elif q == 2 or q == 6:
            ANS.append('U')
        elif q == 3:
            ANS.append('L')
        elif q == 7:
            ANS.append('R')
        else:
            ANS.append('D')
        q += 1
        q %= 8
print(''.join(ANS))