#include <stdio.h>

int main()
{

    FILE *fp, *fd, *fv;


    fp = fopen("cisla1.txt","r");
    fd = fopen("cisla2.txt","r");
    fv = fopen("vysledok.txt","w");
    int cisla, x=0,y=0,i=0,j=0;
    int pole1[10000], pole2[10000];

    while(fscanf(fp,"%d",&cisla)>0)
    {
        pole1[x++] = cisla;
    }
    while(fscanf(fd,"%d",&cisla)>0)
    {
        pole2[y++] = cisla;
    }



    while(1)
    {
        if(j==y)
        {
            while(i!=x)
            {
                fprintf(fv, "%d ", pole1[i++]);
            }
        }
        if(i==x)
        {
            while(j!=y)
            {
                fprintf(fv, "%d ", pole2[j++]);
            }
        }

        if( (x==i) && (y==j) )
        {
            break;
        }

        if(pole1[i] < pole2[j])
        {
            fprintf(fv, "%d ", pole1[i++]);
        }
        else if(pole1[i] > pole2[j])
        {
            printf("%d %d", pole1[i], pole2[y]);
            fprintf(fv, "%d ", pole2[j++]);
        }
        else if(pole1[i] == pole2[j])
        {
            fprintf(fv, "%d ", pole1[i++]);
            fprintf(fv, "%d ", pole2[j++]);
        }



    }


    fclose(fp);
    fclose(fd);
    fclose(fv);


    return 0;
}