CodePudding user response:

1) the last sentence should be the next I not next j also saves only write next
2) less next
3) for the back to step 1

CodePudding user response:

These are fundamental questions, should not go wrong!

CodePudding user response:

Too base, you understand is not deep, good good study,

CodePudding user response:

Written on the first floor is complete, you have married,