Revert "changing map"

This reverts commit b66afcd4d88ca83fb30e5e86a38b86546b3cbef2.
Revert "adding iostream"

This reverts commit 5d4cdb5318eae289b4d426e3e89a896f5617c812.
bad
Revert "bad"

This reverts commit 75e0595eb841c45ae69b14fe09aa687837062521.