#include<stdio.h>

int main()
{
	FILE *fp_read,*fp_write;
	fp_read=fopen("in.cpp","r");
	fp_write=fopen("out.cpp","w");
	bool yinhao=false;
	char c;
	while(!feof(fp_read)){
		c=fgetc(fp_read);
		if(c=='"') yinhao=!yinhao;
		if('/'==c){
			if(yinhao){
				fputc(c,fp_write);
			}
			else{
				c=fgetc(fp_read);
				if(c=='/'){
					while(c!='\n') c=fgetc(fp_read);
				}
				if(c=='*'){
					char old;
					old=fgetc(fp_read);
					for(;;){
						c=fgetc(fp_read);
						if(old=='*'&&c=='/') break;
						old=c;
					}
				}
			}
		}
		else{
			fputc(c,fp_write);
		}
	}
	fclose(fp_read);
	fclose(fp_write);
}