N, T = map(int, input().split())
A = [list(map(int, input().split())) for _ in range(N)]

max_xor = 0
s_i, s_j = 0, 0

for i in range(N):
    for j in range(N):
        s = A[i][j]

        xor = sum(sum(max(A[r][c] ^ s, A[r][c]) for c in range(N)) for r in range(N))

        if xor > max_xor:
            max_xor = xor
            s_i, s_j = i, j

ans = []
ans.extend(["D"] * s_i)
ans.extend(["R"] * s_j)
ans.append("C")
ans.extend(["U"] * s_i)
ans.extend(["L"] * s_j)

for i in range(N):
    for j in range(N):
        if A[i][j] < A[i][j] ^ A[s_i][s_j]:
            ans.append("W")
        if j < N - 1:
            ans.append("R")

    if i < N - 1:
        ans.extend(["L"] * (N - 1))
        ans.append("D")

print(*ans, sep="\n")