Captain Caveman

specs = ['Intel', 'Core', 'i5-4210Y', '@', '1.50GHz', '(20%)', '998', 'N']

for i in specs:
    if i == 'i5-4210Y':
        specs.remove(i)
        i = i.split('-')
        specs.append(i[0])
        specs.append(i[1])

print(before)