PROFF  Professor Farouk Question
Professor farouk asked his students to create a variable of type integer and let it equal to 2147483647 then asked them to add 1 for this variable they found that the answer like that 2147483648 while it should be 2147483648. One of students said that we can use long and other said we can use Big Integer in java, but for sure professor farouk know all this things but he wanted to ask what will you do if there's no data type can have your result ?
one of sudents gave the best answer he said we can add multidigit numbers from righttoleft one digit at a time and print the result. for sure by using this way he will find a carry for example
1234
+
5678
______
6912
4+8=2 and carry 1
carry+3+7=carry 1
carry+2+6=9 carry 0
carry+1+5=6
Your job is to create a program that count the number of carry operations.
Input
Each line of input contains two unsigned integers less than 10 digits. The last line of input contains ‘0 0’.
Output
For each line of input except the last you should compute and print the number of carry operations that would result from adding the two numbers, in the format shown below.
Example
Input:
123 456555 555123 594123 456
555 555
123 594
0 0
Output:
No carry operation.
3 carry operations.
1 carry operation.
hide comments
prakash1108:
20180115 15:55:43
Use of array costed me 9 WA.


zeeshan12:
20180114 18:24:02
do check for carry=1


prasad_235:
20180113 19:40:54
Thank you very much @venkat016 

venkat016:
20180108 21:44:16
Thanks to the comment for @prasad_235 

swatantragupta:
20161226 19:00:44
note:


atul_agarwal:
20160822 08:14:18
Please note:


mkfeuhrer:
20160620 23:33:09
my 150th!!! first code C++ dont know what was wrong !! second wrote in C with similar approach...got AC :) 

ragwave:
20160514 19:28:35
do watch, for carry=1


rahul_verma:
20160226 22:43:57
Too much WA but finally done it 

naman599:
20160225 16:32:48
Please check my code, I really can't find the error... My submission id is 16362479 
Added by:  atef 
Date:  20150423 
Time limit:  2s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ASM64 GOSU JSMONKEY 