Khan/khan-exercises — comment on commit 734e03fa68b4bf668cb90518d1b173a42237f3dd
File:  line 0
By beneater:

fix #7464; fix #7450; fix #7443; fix #7442; fix #7441; fix #7459; fix #7457; fix #7455; fix #7448; fix #7444; fix #7440; fix #7429; fix #7427; fix #7426; fix #7458; fix #7456; fix #7452; fix #7463; fix #7462; fix #7433