#include <stdio.h>
int main(void) {
int seireki;
if(seireki%4==0){
printf("%d年はうるう年です\n",seireki
); }
else if(seireki%100==0){
printf("%d年はうるう年ではありません\n",seireki
); }
else if(seireki%400==0){
printf("%d年はうるう年です\n",seireki
); }
else{
printf("%d年はうるう年ではありません\n",seireki
); }
return 0;
}
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