text = 'aaa;bbbbb;cc;ddd;e;fffffff;gggggg;hhhhhhh;tttt;ertert;erterterggg;ergergergerg;ver'
result = ''.join([c+'|' if i % 5 == 0 else c+';' for i,c in enumerate(text.split(';'), 1)])
print(result)
dGV4dCA9ICdhYWE7YmJiYmI7Y2M7ZGRkO2U7ZmZmZmZmZjtnZ2dnZ2c7aGhoaGhoaDt0dHR0O2VydGVydDtlcnRlcnRlcmdnZztlcmdlcmdlcmdlcmc7dmVyJwpyZXN1bHQgPSAnJy5qb2luKFtjKyd8JyBpZiBpICUgNSA9PSAwIGVsc2UgYysnOycgZm9yIGksYyBpbiBlbnVtZXJhdGUodGV4dC5zcGxpdCgnOycpLCAxKV0pCnByaW50KHJlc3VsdCk=