JULKA - Julka

Julka surprised her teacher at preschool by solving the following riddle:

Klaudia and Natalia have 10 apples together, but Klaudia has two apples more than Natalia. How many apples does each of he girls have?

Julka said without thinking: Klaudia has 6 apples and Natalia 4 apples. The teacher tried to check if Julka's answer wasn't accidental and repeated the riddle every time increasing the numbers. Every time Julka answered correctly. The surprised teacher wanted to continue questioning Julka, but with big numbers she could't solve the riddle fast enough herself. Help the teacher and write a program which will give her the right answers.


Write a program which

  • reads from standard input the number of apples the girls have together and how many more apples Klaudia has,
  • counts the number of apples belonging to Klaudia and the number of apples belonging to Natalia,
  • writes the outcome to standard output


Ten test cases (given one under another, you have to process all!). Every test case consists of two lines. The first line says how many apples both girls have together. The second line says how many more apples Klaudia has. Both numbers are positive integers. It is known that both girls have no more than 10100 (1 and 100 zeros) apples together. As you can see apples can be very small.


For every test case your program should output two lines. The first line should contain the number of apples belonging to Klaudia. The second line should contain the number of apples belonging to Natalia.


[and 9 test cases more]

[and 9 test cases more]

hide comments
mindfuck: 2012-05-28 09:45:36

tough problem if u use c/c++

Mr. Rook: 2012-05-25 09:33:36

i think java shold not be allowed

Alex: 2012-04-14 08:52:42

Got AC but Input 23 6 gives actually a wrong answer...

Kostis Karantias: 2012-03-01 19:24:00

@jaleel chen: seems that '//' rounds correctly the numbers.

BOND: 2012-02-25 05:08:21

i love you JAVA <3 :)

RGKA: 2012-01-02 10:18:44

if number of apples is 15 and if it is 2 more, then how we can split them?

jaleel chen: 2012-01-01 06:16:09

With almost the same code(five lines), why python 2.x is much faster than python3.x(at least for this problem)? Did I miss something?

And why a huge number divide by two is not correct in python3.x? For example, d= 12345678912356789123456789123456789123456789123456789123456789 then d/2 is incorrect in python3.x while it is correct in python2.x. However, it is correct by d>>1. Who can do me a favour to explain it for me? I am new to python, thank u ^_^.

btw, the result for 33 and 4 should be 18 and 14. Good Luck!

Last edit: 2012-01-01 06:17:06
Archit Goel: 2011-12-29 20:39:36

It happened the same with me as with MR.BEAN,i.e. it gave WA in C but AC in C++. Can anyone explain why so happened?

MR. BEAN : 2011-12-23 08:08:14

take care of odd numbers...
got WA in C and AC with the same code in C++ !!!

sikandar: 2011-12-19 13:51:44

in JAVA use BigInteger for large number, i got AC.

Added by:Adam Dzedzej
Time limit:2s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: NODEJS PERL6 VB.NET
Resource:Internet Contest Pogromcy Algorytmow (Algorithm Tamers)
Round II, 2003