Morse Code , Python dictionary

 r = {

'A':'·-','B':'-···','C':'-·-·','D':'-··','E':'·','F':'··-·','G':'--·',

'H':'····','I':'··','J':'·---','K':'-·-','L':'·-··','M':'--','N':'-·',

'O':'---','P':'·--·','Q':'--·-','R':'·-·','S':'···','T':'-','U':'··-',

'V':'···-','W':'·--','X':'-··-','Y':'-·--','Z':'--··'

}

a = 'HELLO'

for i in a:

    print(r[i])