def rectangle(nbLignes: int,nbColonnes: int,motif: str):
    for ligne in range(nbLignes):
        for colonne in range(nbColonnes):
            print(motif, end="")
        print()

nbLignes = int(input())
nbColonnes = int(input())
motif = input()

rectangle(nbLignes, nbColonnes, motif)