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In [5]: for i in range(5): for j in range(5): j = i+j print(j)
for i in range(5): for j in range(5): j = i+j print(j)
0 1 2 3 4 1 2 3 4 5 2 3 4 5 6 3 4 5 6 7 4 5 6 7 8
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