n,k=map(int,input().split())a=list(map(int,input().split()))count=0for i in range(len(a)): if a[i]%k==0: count+=1 a[i]=0a.sort()for i in range(count,len(a)): for j in range(i+1,len(a)): if (a[i]+a[j])%k==0: count+=1 a[i]=0 a[j]=0print(count...