#include <cstdio>
#include <algorithm>
using namespace std;
int main(){
int n, m;
scanf("%d %d", &n, &m);
int arr[n];
for(int i=0; i<n; i++){
scanf("%d", &arr[i]);
}
sort(arr, arr+n);
int i=0, j=n-1;
while(i < j){
if(arr[i]+arr[j] < m){
i++;
}else if(arr[i]+arr[j] > m){
j--;
}else{
printf("%d %d", arr[i], arr[j]);
return 0;
}
}
printf("No Solution");
return 0;
}
双指针解这题是真的香啊