#include <stdio.h>

int main() {
  int list[3] = {10, 20, 30};
  list[0] = 19;
  list[1] = 100;
  list[2] = 300;
  int a = list[0];
  int b = list[1];
  int c = list[2];
  printf("a = %d \n b = %d \n c = %d", a, b, c);
  return 0;
}

a = 19
b = 100
c = 300