https://old.ynoip.cn/p/1111

#include <cstdio>
#include <algorithm>
using namespace std;

int main(void) {
	int a[3];
	scanf("%d%d%d", &a[0], &a[1], &a[2]);
	sort(a, a + 3);
	printf("%d", a[2]);
	return 0;
}