Ciel and A-B Problem

Problem code: CIELAB

All Submissions

All submissions for this problem are available.

In Ciel's restaurant, a waiter is training. Since the waiter isn't good at arithmetic, sometimes he gives guests wrong change. Ciel gives him a simple problem. What is A-B (A minus B) ?

Surprisingly, his answer is wrong. To be more precise, his answer has exactly one wrong digit. Can you imagine this? Can you make the same mistake in this problem?

Input

An input contains 2 integers A and B.

Output

Print a wrong answer of A-B. Your answer must be a positive integer containing the same number of digits as the correct answer, and exactly one digit must differ from the correct answer. Leading zeros are not allowed. If there are multiple answers satisfying the above conditions, anyone will do.

Constraints

1 ? B < A ? 10000

Sample Input

5858 1234

Sample Output

Output details

The correct answer of 5858-1234 is 4624. So, for instance, 2624, 4324, 4623, 4604 and 4629 will be accepted, but 0624, 624, 5858, 4624 and 04624 will be rejected.

Notes

The problem setter is also not good at arithmetic.

Author:	laycurse
Date Added:	22-11-2011
Time Limit:	1 sec
Source Limit:	50000 Bytes
Languages:	ADA, ASM, BASH, BF, C, C99 strict, CAML, CLOJ, CLPS, CPP 4.0.0-8, CPP 4.3.2, CS2, D, ERL, F#, FORT, GO, HASK, ICK, ICON, JAR, JAVA, JS, LISP clisp, LISP sbcl, LUA, NEM, NICE, PAS fpc, PAS gpc, PERL, PERL6, PHP, PIKE, PRLG, PYTH, PYTH 3.1.2, RUBY, SCALA, SCM guile, SCM qobi, ST, TCL, TEXT, WSPC

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Comments

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I am new to codechef when to

ujjwal_invent @ 18 Dec 2011 10:07 PM

I am new to codechef when to stop taking inputs can somebody help or I should run infinite loop....

@ujjwal_invent all test cases

jingbo_adm @ 18 Dec 2011 10:09 PM

@ujjwal_invent all test cases are in different files. You just need to follow the INPUT STATEMENT. It tells you how to read data from the standard input.

@ujjwal_invent: Please check

admin @ 18 Dec 2011 10:10 PM

@ujjwal_invent: Please check the FAQ link http://www.codechef.com/wiki/faq#If_a_number_of_test_cases_isn-t_provide...

what if the right answer

niting112 @ 18 Dec 2011 10:26 PM

what if the right answer itself if of one digit eg 9-8=1? is 0 or 2 taken as right ?

@niting112 read the output

jingbo_adm @ 18 Dec 2011 10:30 PM

@niting112 read the output statement carefully.

4620 can be the answer?

ab1234 @ 18 Dec 2011 10:37 PM

4620 can be the answer?

do we need to check contraint

sharmasahil @ 18 Dec 2011 10:37 PM

do we need to check contraint <10,000 too

I am getting correct output

sharmasahil @ 18 Dec 2011 10:39 PM

I am getting correct output on my machine.stil its showin wrong answer.can u review it

@ab1234 Yes

jingbo_adm @ 18 Dec 2011 10:42 PM

@ab1234 Yes

@sharmasahil as you wish if

jingbo_adm @ 18 Dec 2011 10:43 PM

@sharmasahil as you wish if you think it may be necessary :) BTW, <=10,000

@sharmasahil there are many

jingbo_adm @ 18 Dec 2011 10:44 PM

@sharmasahil there are many other test cases :)

if input will be 12 10 then

tarun29061990 @ 18 Dec 2011 10:44 PM

if input will be 12 10 then what???

Does this problem have only

aarvay @ 18 Dec 2011 10:46 PM

Does this problem have only one test case? or several?

@aarvay only one in each

jingbo_adm @ 18 Dec 2011 10:48 PM

@aarvay only one in each file. and test many files by judge

@tarun29061990 any one from 1

jingbo_adm @ 18 Dec 2011 10:48 PM

@tarun29061990 any one from 1 to 9 will be OK

can 4625 be an answer for

bilalgce @ 18 Dec 2011 10:50 PM

can 4625 be an answer for sample inputs?

In the input file, first

niting112 @ 18 Dec 2011 10:50 PM

In the input file, first number is always A ?

@bilalgce Yes

jingbo_adm @ 18 Dec 2011 10:52 PM

@bilalgce Yes

@niting112 Yes

jingbo_adm @ 18 Dec 2011 10:52 PM

@niting112 Yes

yes !! finally got my first

niting112 @ 18 Dec 2011 10:59 PM

yes !! finally got my first answer in codechef !! Was missing some corner cases :)

Can B be greater than A ??

casy @ 18 Dec 2011 11:32 PM

Can B be greater than A ??

@casy No. please read the

hiroto_adm @ 18 Dec 2011 11:35 PM

@casy No. please read the statement

@admin; thankyou so much. got

sharmasahil @ 18 Dec 2011 11:54 PM

@admin; thankyou so much. got first tym correct soln.

What should be the answer for

casy @ 19 Dec 2011 12:00 AM

What should be the answer for 1234 1234 ?? 1 or something else

@casy read the input

jingbo_adm @ 19 Dec 2011 12:08 AM

@casy read the input statement

@casy read constraint

jingbo_adm @ 19 Dec 2011 12:09 AM

@casy read constraint

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