def out(c, n):
    for i in range(n):
        print(c, end='')


sx, sy, tx, ty = map(int, input().split())
out('U', ty - sy)
out('R', tx - sx)
out('D', ty - sy)
out('L', tx - sx)
out('L', 1)
out('U', ty - sy + 1)
out('R', tx - sx + 1)
out('D', 1)
out('R', 1)
out('D', ty - sy + 1)
out('L', tx - sx + 1)
out('U', 1)
print()

9689d82da860f087cb7e84c53fa6fc22ae99f2a6
<mask token>

def out(c, n):
    for i in range(n):
        print(c, end='')


<mask token>

def out(c, n):
    for i in range(n):
        print(c, end='')


<mask token>
out('U', ty - sy)
out('R', tx - sx)
out('D', ty - sy)
out('L', tx - sx)
out('L', 1)
out('U', ty - sy + 1)
out('R', tx - sx + 1)
out('D', 1)
out('R', 1)
out('D', ty - sy + 1)
out('L', tx - sx + 1)
out('U', 1)
print()

def out(c, n):
    for i in range(n):
        print(c, end='')


sx, sy, tx, ty = map(int, input().split())
out('U', ty - sy)
out('R', tx - sx)
out('D', ty - sy)
out('L', tx - sx)
out('L', 1)
out('U', ty - sy + 1)
out('R', tx - sx + 1)
out('D', 1)
out('R', 1)
out('D', ty - sy + 1)
out('L', tx - sx + 1)
out('U', 1)
print()
