double back lines

Submit

Language is selected by the extension of the file. See the list of supported languages to know the extension of your language.

Problem

Please write double back lines.

Options

exec is denied

no deadline, the server will not save your submission

Sample input:_

12345
abcde

Sample output:

123454321
abcdedcba

Sample input:_

#include <iostream>

int main(int argc, char* argv[]){

    std::cout << "Test Program" << std::endl;
    return 0;
}

Sample output:

#include <iostream>maertsoi< edulcni#

int main(int argc, char* argv[]){)][vgra *rahc ,cgra tni(niam tni

    std::cout << "Test Program" << std::endl;ldne::dts << "margorP tseT" << tuoc::dts    
    return 0;0 nruter    
}

Sample input:_

X     X Y     Y ZZZZZZZ
 X   X   Y   Y       Z
  X X     Y Y       Z
   X       Y       Z
  X X      Y      Z
 X   X     Y     Z
X     X    Y    ZZZZZZZ

Sample output:

X     X Y     Y ZZZZZZZZZZZZZ Y     Y X     X
 X   X   Y   Y       Z       Y   Y   X   X 
  X X     Y Y       Z       Y Y     X X  
   X       Y       Z       Y       X   
  X X      Y      Z      Y      X X  
 X   X     Y     Z     Y     X   X 
X     X    Y    ZZZZZZZZZZZZZ    Y    X     X

Ranking

Ruby _

Ruby2 _

Perl _

Python _

Python3 _

PHP _

Pike _

Scheme _

Common LISP _

Arc _

Clojure _

Io _

JavaScript _

Lua _

Tcl _

Xtal _

Crystal _

Kite _

SNOBOL _

Icon _

REXX _

Smalltalk _

Prolog _

BASIC _

Perl6 _

Erlang _

J _

K _

Jelly _

C _

D _

Go _

OCaml _

Haskell _

Java _

Pascal _

Nemerle _

Maxima _

Octave _

REBOL _

Asymptote _

AWK _

sed _

jq _

Bash _

Bash (builtins) _

wake _

bc _

xgawk _

Postscript _

R _

Brainfuck _

Aheui _

GolfScript _

gs2 _

FlogScript _

Burlesque _

Lazy-K _

z80 _

Vim _

goruby _

Groovy _

Scala _

Language Ranking_

return to the top page