PAT-A1048

#include<stdio.h>int main(){int i, n, m, temp, ascall[1100]={0};scanf("%d%d",&n,&m);for(i=0;i<n;i++){scanf("%d",&temp);ascall[temp]++;}int flag=0;for(i=1;i<m/2;i++){if(ascall[i]!=0&&ascall[m-i]!=0){printf("%d %d\n",i,m-i);flag=1;break;}}if(m%2==1 &&flag==0){if(ascall[m/2]!=0&&ascall[m/2+1]!=0){printf("%d %d\n",m/2,m/2+1);flag=1;}  }if(m%2==0 &&flag==0){if(ascall[m/2]>1){printf("%d %d\n",m/2,m/2); flag=1;} }if(flag==0 )printf("No Solution\n");return 0;}