a,b,x,y=list(map(int,input().split()));r,c=y-b,x-a;print(('R'*c+'U'*r+'L'*c+'D'*-~r+'R'*-~c+'U'*-~r+'LU'+'L'*-~c+'D'*-~r+'R'))
a,b,x,y=list(map(int,input().split()));r,c=y-b,x-a;R,L,U,D='RLUD';print((R*c+U*r+L*c+D*-~r+R*-~c+U*-~r+L+U+L*-~c+D*-~r+R))
a, b, x, y = list(map(int, input().split()))
r, c = y - b, x - a
print(
    (
        "R" * c
        + "U" * r
        + "L" * c
        + "D" * -~r
        + "R" * -~c
        + "U" * -~r
        + "LU"
        + "L" * -~c
        + "D" * -~r
        + "R"
    )
)

a, b, x, y = list(map(int, input().split()))
r, c = y - b, x - a
R, L, U, D = "RLUD"
print(
    (
        R * c
        + U * r
        + L * c
        + D * -~r
        + R * -~c
        + U * -~r
        + L
        + U
        + L * -~c
        + D * -~r
        + R
    )
)

+R, L, U, D = "RLUD" -        "R" * c -        + "U" * r -        + "L" * c -        + "D" * -~r -        + "R" * -~c -        + "U" * -~r -        + "LU" -        + "L" * -~c -        + "D" * -~r -        + "R" +        R * c +        + U * r +        + L * c +        + D * -~r +        + R * -~c +        + U * -~r +        + L +        + U +        + L * -~c +        + D * -~r +        + R