Program to display largest from any 10 numbers

Question

void main ()
{
int num,a,max;
printf("Enter First Number");
scanf("%d",&num);
max=num;
for (a=1,a<=9;a++)
{
printf("Enter Next Number");
scanf("%d",num);
if(max<num)
max=num;
}
printf("largest=%d",max);
}

Answer 1

#include <stdio.h>

int main() {

//Program to display largest from any 10 numbers

//void main ()
//{
int num,a,max;
printf("Enter First Number");
scanf("%d",&num);
max=num;
for (a=1;a<=2;a++)
{
printf("Enter Next Number");
scanf("%d",&num);
if(max<num)
max=num;
}
printf("largest=%d",max);
//}
return 0;
}

Answer 2

The program didn't runs
Please help