#include <stdio.h>

int dmap[4][2] = { { -1, 0 }, { 1, 0 }, { 0, -1 }, { 0, 1 } };
char dchar[4] = { 'U', 'D', 'L', 'R' };

int main () {
  int h = 0;
  int w = 0;
  int k = 0;
  int l = 0;
  int r = 0;
  char s[500][501] = {};
  
  int res = 0;
  
  int is_ok = 0;
  char t[500001] = "";
  
  int d[500][500][2] = {};
  int prev[500][500][2] = {};
  
  int q[250000][2] = {};
  int q_hd = 0;
  int q_tl = 0;
  
  res = scanf("%d", &h);
  res = scanf("%d", &w);
  res = scanf("%d", &k);
  res = scanf("%d", &l);
  res = scanf("%d", &r);
  for (int i = 0; i < h; i++) {
    res = scanf("%s", s[i]);
  }
  
  if ((r-l)%2 == 0) {
    printf("No\n");
    return 0;
  }
  
  for (int i = 0; i < h; i++) {
    for (int j = 0; j < w; j++) {
      d[i][j][0] = h*w;
      d[i][j][1] = h*w;
    }
  }
  
  d[0][0][0] = 0;
  q[q_tl][0] = 0;
  q[q_tl][1] = 0;
  prev[0][0][0] = -1;
  q_tl++;
  while (q_hd < q_tl) {
    int ci = q[q_hd][0];
    int cj = q[q_hd][1];
    int tmp_d = d[ci][cj][0];
    q_hd++;
    for (int i = 0; i < 4; i++) {
      int ni = ci+dmap[i][0];
      int nj = cj+dmap[i][1];
      if (ni >= 0 && ni < h && nj >= 0 && nj < w && s[ni][nj] == '.' && d[ni][nj][0] >= h*w) {
        d[ni][nj][0] = tmp_d+1;
        prev[ni][nj][0] = i;
        q[q_tl][0] = ni;
        q[q_tl][1] = nj;
        q_tl++;
      }
    }
  }
  
  q_hd = 0;
  q_tl = 0;
  d[h-1][w-1][1] = 0;
  q[q_tl][0] = h-1;
  q[q_tl][1] = w-1;
  prev[h-1][w-1][1] = -1;
  q_tl++;
  while (q_hd < q_tl) {
    int ci = q[q_hd][0];
    int cj = q[q_hd][1];
    int tmp_d = d[ci][cj][1];
    q_hd++;
    for (int i = 0; i < 4; i++) {
      int ni = ci+dmap[i][0];
      int nj = cj+dmap[i][1];
      if (ni >= 0 && ni < h && nj >= 0 && nj < w && s[ni][nj] == '.' && d[ni][nj][1] >= h*w) {
        d[ni][nj][1] = tmp_d+1;
        prev[ni][nj][1] = i;
        q[q_tl][0] = ni;
        q[q_tl][1] = nj;
        q_tl++;
      }
    }
  }
  
  for (int i = 0; i < h; i++) {
    for (int j = 1; j < w-1; j++) {
      if (is_ok <= 0 && d[i][j][0] < h*w && d[i][j][0] < l && d[i][j][0]%2 != l%2 && s[i][j-1] == '.' && s[i][j+1] == '.' && d[i][j][1] < h*w && d[i][j][1] <= k-r && d[i][j][1]%2 == (k-r)%2) {
        int ti = i;
        int tj = j;
        is_ok = 1;
        for (int p = d[i][j][0]; p > 0; p--) {
          int ni = ti+dmap[((prev[ti][tj][0])^1)][0];
          int nj = tj+dmap[((prev[ti][tj][0])^1)][1];
          t[p-1] = dchar[prev[ti][tj][0]];
          ti = ni;
          tj = nj;
        }
        for (int p = d[i][j][0]; p < k-d[i][j][1]; p++) {
          t[p] = dchar[2+p%2];
        }
        ti = i;
        tj = j;
        for (int p = k-d[i][j][1]; p < k; p++) {
          int ni = ti+dmap[((prev[ti][tj][1])^1)][0];
          int nj = tj+dmap[((prev[ti][tj][1])^1)][1];
          t[p] = dchar[((prev[ti][tj][1])^1)];
          ti = ni;
          tj = nj;
        }
        t[k] = '\0';
      }
    }
  }
  
  for (int i = 1; i < h-1; i++) {
    for (int j = 0; j < w; j++) {
      if (is_ok <= 0 && d[i][j][0] < h*w && d[i][j][0] < l && d[i][j][0]%2 != l%2 && s[i-1][j] == '.' && s[i+1][j] == '.' && d[i][j][1] < h*w && d[i][j][1] <= k-r && d[i][j][1]%2 == (k-r)%2) {
        int ti = i;
        int tj = j;
        is_ok = 1;
        for (int p = d[i][j][0]; p > 0; p--) {
          int ni = ti+dmap[((prev[ti][tj][0])^1)][0];
          int nj = tj+dmap[((prev[ti][tj][0])^1)][1];
          t[p-1] = dchar[prev[ti][tj][0]];
          ti = ni;
          tj = nj;
        }
        for (int p = d[i][j][0]; p < k-d[i][j][1]; p++) {
          t[p] = dchar[p%2];
        }
        ti = i;
        tj = j;
        for (int p = k-d[i][j][1]; p < k; p++) {
          int ni = ti+dmap[((prev[ti][tj][1])^1)][0];
          int nj = tj+dmap[((prev[ti][tj][1])^1)][1];
          t[p] = dchar[((prev[ti][tj][1])^1)];
          ti = ni;
          tj = nj;
        }
        t[k] = '\0';
      }
    }
  }
  
  if (is_ok > 0) {
    printf("Yes\n%s\n", t);
  } else {
    printf("No\n");
  }
  
  return 0;
}