n=int(input())
i=(n//2)*' '
s=i+' \\ /\n'+i[:-1]+'-->*<--\n '+i+'/_\\\n'
for j in range(n):
	i=(i,i[:-1])[j%2]
	m=j+(j%2)+3
	s+=i+'/'+(('_'+('\\','/')[j%2])*m)[:m]+'\\\n'
print(s+' '*(n//2)+'[___]')