问题解决（python）The second lock consists of a"T"-shaped aroove in 。。

The second lock consists of a"T"-shaped aroove in the doorThe left branch of theT is labelled source，the right branch is labelled destination. and the bottom branch is labelled storeSeveral aems are mounted in the left branch(the source)such that they can be slid along the groove toward the right or bottom branches(the destination or store.respectively).Each of the aems is numbered consecutively beainnina from oneLin notes that no numbers are skipped nor are any numbers