99999999 add 222222222 = 322222221
244444444
222222222 = 222,222,222
245122011972
99999999/1
9,999,999,800,000,001
222218284
99999999 + 987654345678 = 987754345677
It is 99999999.
2743484194787626291358
The answer is -220000000.
1000000000000000000000000000000000000000000000222222221
222222222