#include <stdio.h>
 
int piyo(int x, int y){
	if(x<=6){
		return 500;
	}
	else if(x<=12){
			return 1000;
	}
	else if(y==1){
			return 1000;
	}
	else if(x<=15){
			return 1500;
	}
	else{
			return 2000;
	}
}
 
int main(void) {
	// your code goes here
	return 0;
}
 
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