# include<stdio.h>
# include<conio.h>
void main(int argc, char *argv[])
{
    FILE *ptf1,*ptf2,*ptf3;
    int a,b;
    clrscr();
    a=b=0;

    ptf1=fopen(argv[1],"r");
    ptf2=fopen(argv[2],"r");
    ptf3=fopen(argv[3],"w");

    fscanf(ptf1,"%d",&a);
    fscanf(ptf2,"%d",&b);

    while(1)
    {
        if(b==0 || a==0)
            break;
        if(a<b)
        {
            fprintf(ptf3,"%d ",a);
            fscanf(ptf1,"%2d",&a);
        }
        if(a>b)
        {
            fprintf(ptf3,"%d ",b);
            fscanf(ptf2,"%2d",&b);
        }
        if(a==b)
        {
            fprintf(ptf3,"%d ",a);
            fscanf(ptf1,"%2d",&a);
            fscanf(ptf2,"%2d",&b);
        }
    }
    if(a==0 & b!=0)
    {
        while(1)
        {
            fprintf(ptf3,"%d ",b);
            //putw(b,ptf3);//b=getw(ptf2);
            fscanf(ptf2,"%2d",&b);
            if(b==0)
                break;
        }
    }
    if(a!=0 & b==0)
    {
        while(1)
        {
            fprintf(ptf3,"%d ",a);
            fscanf(ptf1,"%2d",&a);
            if(a==0)
                break;
        }
    }
    fclose(ptf1);
    fclose(ptf2);
    fclose(ptf3);
}