C program to find largest among three numbers

This C program takes input from user and finds out the largest number.

#include <stdio.h>
#include <conio.h>

int main()
{
//declare three variables
int a, b, c;

printf("\n\nEnter the values of a : ");
scanf("%d",&a);
printf("\nEnter the values of b : ");
scanf("%d",&b);
printf("\nEnter the values of c : ");
scanf("%d",&c);

printf("\nThe values of three numbers are \n");
printf("\n a : %d",a);
printf("\n b : %d",b);
printf("\n c : %d\n",c);

 if(a>b)
 {
  if(a>c)
    printf("\n a = %d is the largest number",a);
  else
    printf("\n c = %d is the largest number",c);
  }
  else
  {
   if(c>b)
     printf("\n c = %d is the largest number",c);
   else
     printf("\n b = %d is the largest number",b);
  }

//hold the screen
getchar();

return 0;
}

The output is 6 if user enters 4, 5, 6

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