#include<stdio.h>
main()
{
    FILE *fp;
    char a;
    fp=fopen("old.out","w");
    if(fp==0)
        printf("File opening error");
    else
    {
        for(scanf("%c",&a);a!=EOF;scanf("%c",&a))
        fprintf(fp,"%c",a);
        fclose(fp);
        fp=fopen("old.out","r");
        while(!feof(fp))
            putchar(getc(fp));
        }
}

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