n=int(raw_input(""))
s=raw_input("")
prop=s.split(" ")
i=0
v=[]
while i<n*n:
    v.append(int(prop[i]))
    i=i+1
v=sorted(v);
a=[]
for i in range(0,n):
    a.append([])
    for j in range(0,n):
        a[i].append(0)
print(v)
for i in range(0,n):
    a[i][i]=v.pop()
print(a)
for i in range(0,n):
    s=""
    for j in range(0,n):
        if i!=j:
            a[i][j]=v.pop()
        s=s+str(a[i][j])+" "
    print(s)