sayı-rakam

#include
#include

int main(){
FILE *f; int i=0; char buf,ilk;
f=fopen("sayi.txt","w+");
printf("Sayiyi girin:");
scanf("%d",&i);
fprintf(f,"%d",i);
fclose(f);
f=fopen("sayi.txt","r");
buf=getc(f);
while(buf!=EOF){
i++;
if(i==1)
ilk=buf;
}

if(i==7){
printf("Para %s",ilk); printf(" milyon");
}
fclose(f);
}