#include <stdio.h>

 main()

 {

     FILE * fp_i;

     FILE * fp_o;

     fp_i = fopen("input.txt", "r");

     fp_o = fopen("output.txt", "w");

     char ch;

     int sign;

     while((ch=fgetc(fp_i)) != EOF){

         if (ch == '/' ){

             ch=fgetc(fp_i);

             if (ch == '/'){

                 while(ch != '\n'){

                     ch=fgetc(fp_i);

                 }

                 fputc('\n', fp_o);

             }else if(ch == '*'){

                 ch = fgetc(fp_i);

                 sign = ;

                 while(sign !=  && ch != '\n'){

                     if (ch == '*'){

                         ch = fgetc(fp_i);

                         if (ch == '/'){

                             sign = ;

                         }

                     }else{

                         ch = fgetc(fp_i);

                     }

                 }

                 fputc('\n', fp_o);

             }else{

                 fputc('/', fp_o);

                 fputc(ch, fp_o);

             }

         }else{

             fputc(ch, fp_o);

         }

     }

     fclose(fp_i);

     fclose(fp_o);

 }