n, w, h = map(int, input().split())
s = input().split("l")
bags = [list(ele) for ele in s]
matrix = [["x" for _ in range(w)] for _ in range(h)]
for i in range(w):
    if len(bags) - 1 >= i:
        column = bags[i]
        for j in range(h):
            if len(column)-1 >= j:
                matrix[j][i] = column[j]

for row in matrix[::-1]:
    print("".join(row))