INF 1e10 int input for in range row list map int input split append ro

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INF = 1e10
N = int( input())
W = []
for i in range(N):
row = list(map(int, input().split()))
W.append(row)
for i in range(N):
for j in range(N):
if W[i][j] == 0 and i != j:
W[i][j] = INF
'''
print ( "Весовая матрица графа: " )
for i in range(N):
for j in range(N):
if W[i][j] == INF: print ( " *", end="" )
else: print ( "%4d" %W[i][j], end="" )
print();
'''
P = []
for i in range(N):
P.append([i]*N)
P[i][i] = -1
for k in range(N):
for i in range(N):
for j in range(N):
if W[i][k] + W[k][j] < W[i][j]:
W[i][j] = W[i][k] + W[k][j]
P[i][j] = P[k][j]
#print ("\nМатрица кратчайших расстояний:");
for i in range(N):
for j in range(N):
if W[i][j] > 0 and W[i][j] < INF:
print ( 1, end=" " )
else:
print(0)
print()