#include<stdio.h>
#include<stdlib.h>
#include<time.h>
int main(){
	int i,a[5],sum1=0,sum=0;
	srand(time(NULL));
	for(i=0;i<5;i++){
		a[i]=rand()%20+1;
		sum1+=a[i];
	}
	//printf("%d ",sum1);
	for(i=1;i<=20;i++){
		sum+=i;
	}
	sum=sum-sum1+sum1;
	printf("%d",sum);
	return 0;
}