Unable to get the result of calc
i didnt get sir.
I checked the characters like +,-,etc.

dont use this break statement
use single quotes in place of double quotes for x and X
i,e ch==‘x’ or ch==‘X’
make similar chnages for all other char as well
Sir this is my updated code still I am unable to pass the test cases.
u need to print Invalid operatiion try again (check output format)
ur code->
My code is compiled and running on sublime but on cb ide and submit window it is not compiling.
runguard: warning: timelimit exceeded (wall time): aborting command
runguard: warning: command terminated with signal 15
This is I am getting
try again,in my machine it is working
u r not giving any input thats why u r getting this error
Yes sir tried but unable to compile
Getting this:
runguard: warning: timelimit exceeded (wall time): aborting command
runguard: warning: command terminated with signal 15
give some input … …
or directly press submit button
Ok done sir,Thankyou for helping me in my silly doubts 
Sir help in armstrong also, iam able to run it on sublime but not able to submit
I checked 153 and getting it
bro pls create a separate thread by raising a diffent doubt.
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