Greatest of three numbers

#include <stdio.h>
#include <stdlib.h>

int main() {
  int A, B, C;

  printf("Enter 1st number = ");
  scanf("%d", &A);

  printf("Enter 2nd number = ");
  scanf("%d", &B);

  printf("Enter 3nd number = ");
  scanf("%d", &C);

  if (A > B && A > C) {
    printf("%d is the greatest.", A);

  } else if (B > A && B > C) {
    printf("%d is the greatest.", B);

  } else if (C > B && C > A) {
    printf("%d is the greatest.", C);

  }

  return 0;
}