n=3
A=list()

s=open("input.txt","r")
w=open("output.txt","w")

for line in s:
    m=list()
    m=line.split()
    for z in m:
        m[m.index(z)]=int(z)

 
    A.append(m)
    
n=len(A)
l=0
for z in A:
    if len(z)!=n:
        l=l+1
if l!=0:
    print("pocitam")
    for i in range(0,n):
        for j in range(0,n):
            if j!=i:
                A[i].append(0)
            else:
                A[i].append(1)
    

    for k in range(0,n):
        for i in range(k+1,n):
            c=A[k][k]/A[i][k]
        for j in range(0,2*n):
            A[i][j]=A[i][j]*c-A[k][j]
    
    for k in range(n-1,-1,-1):
        for i in range(k-1,-1,-1):
            c=A[k][k]/A[i][k]
            for j in range(0,2*n):
                A[i][j]=A[i][j]*c-A[k][j]

    for i in range(0,n):
        for j in range(0,2*n):
            A[i][j]=A[i][j]/A[i][i]

    for i in range(0,n):
        for j in range(0,n):
            del A[i][0]
    print(A)
    for z in A:
        for y in z:
            w.write(y)
            w.write(" ")
        w.write("\n")
s.close()
w.close()