#include<stdio.h>
int main(int argc,char* argv[])
{
	int i;
	FILE *fin,*fnew;
	unsigned char u;
	fnew=fopen(argv[argc-1],"w");
	for(i=1;i<argc-1;i++)
	{
		fin=fopen(argv[i],"r");
		while(!feof(fin))
		{
			fread(&u,sizeof(unsigned char),1,fin);
			if(!feof(fin)){
				fprintf(fnew,"%c",u);
			}
		}
		fclose(fin);
	}
	fclose(fnew);
	fnew=fopen(argv[argc-1],"r");
	while(!feof(fnew))
	{
		fread(&u,sizeof(unsigned char),1,fnew);
		if(!feof(fnew)){
			printf("%c",u);
		}
	}
	fclose(fnew);
	return 0;
}