tokens = "1 one 2 two 3 three".split()
tokens2 = (token for token in tokens)
for x in tokens2:
print(x)
print("---------------")
for x in tokens2:
print(x)
print("---------------")
for k, v in zip(*[tokens2]*2):
print(k, v)
print("---------------")
for k, v in zip(*[(token for token in tokens)]*2):
print(k, v)
dG9rZW5zID0gIjEgb25lIDIgdHdvIDMgdGhyZWUiLnNwbGl0KCkKdG9rZW5zMiA9ICh0b2tlbiBmb3IgdG9rZW4gaW4gdG9rZW5zKQoKZm9yIHggaW4gdG9rZW5zMjoKCXByaW50KHgpCnByaW50KCItLS0tLS0tLS0tLS0tLS0iKQpmb3IgeCBpbiB0b2tlbnMyOgoJcHJpbnQoeCkKcHJpbnQoIi0tLS0tLS0tLS0tLS0tLSIpCmZvciBrLCB2IGluIHppcCgqW3Rva2VuczJdKjIpOgogICAgcHJpbnQoaywgdikKcHJpbnQoIi0tLS0tLS0tLS0tLS0tLSIpCmZvciBrLCB2IGluIHppcCgqWyh0b2tlbiBmb3IgdG9rZW4gaW4gdG9rZW5zKV0qMik6CiAgICBwcmludChrLCB2KQo=