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#include<stdio.h>
int isleapyear(int y){
  int i = y * 0.01;
  return !(y == i * 100 ? i & 3 : y & 3);
}
int main(void){
  printf("%d\n", isleapyear(1900));
  printf("%d\n", isleapyear(2000));
  printf("%d\n", isleapyear(2008));
  printf("%d\n", isleapyear(2100));
  return 0;
}