n = int(input())
s = input()
c = n+1
l = [0]*n
if n == 0:
    print('ERROR 1')
    quit()
for i in range(n):
    l[i] = list(range(c-n, c))
    c += n
l[-1][-1] = k = 0
t = [n-1,n-1]
p = [n-1,n-1]
for i in s:
    k += 1
    if i == 'U':
        t[0] -= 1
    elif i == 'D':
        t[0] += 1
    elif i == 'R':
        t[1] += 1
    elif i == 'L':
        t[1] -= 1
    h = [n,-1]
    if t[1] in h or t[0] in h:
        print('ERROR', k)
        quit()
    l[p[0]][p[1]], l[t[0]][t[1]] = l[t[0]][t[1]], l[p[0]][p[1]]
    p.clear()
    p = list(t)
for i in l:
    print(*i)