if (inp == '2'):
                    year = input('[2]Chose a year: ')
                    while (int(year) > firstYear):
                        year = input('[2]Chose a year: ')
                    oldYear = firstYear
                    firstYear = year

                    current = self.head
                    previous = None
                    '''
                    found = False
                    while not found:
                        if current.data[] == code or current.data[0] == code:
                            found = True
                            indice = (int(year) - firstYear) + 2
                            current.data[indice] = value
                        else:
                            previous = current
                            current = current.get_next()
                    '''
                    for i in range(l.length(l)):
                        for j in range(2, oldYear-firstYear):
                            current.data.insert(j,'')
                            previous = current
                            current = current.get_next()