#include <stdio.h>
int main(void) {
int year,eto;
eto=(year-1900)%12;
switch(eto){
case 0:
break;
case 1:
break;
case 2:
break;
case 3:
break;
case 4:
break;
case 5:
break;
case 6:
break;
case 7:
break;
case 8:
break;
case 9:
break;
case 10:
break;
case 11:
break;
default:
break;
}
return 0;
}
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