SZ = 33
s = [ [ 0 for _ in xrange(SZ+1) ] for _ in xrange(SZ+1) ]
s[0][1] = 1
for r in xrange(SZ-1):
for c in xrange(1, SZ):
s[r+1][c] = s[r][c] ^ s[r][c-1]
print '\n'.join(''.join('*' if s[r][c] else ' ' for c in xrange(1, SZ)) for r in xrange(SZ-1))