https://issuetracker.google.com/issues/249758239
https://issuetracker.google.com/issues/249759209
https://issuetracker.google.com/issues/249758240
https://issuetracker.google.com/issues/249760184
https://issuetracker.google.com/issues/249761007
https://issuetracker.google.com/issues/249760191
https://issuetracker.google.com/issues/249759216
https://issuetracker.google.com/issues/249760201
https://coliru.stacked-crooked.com/a/93c441c32de616df
https://paiza.io/projects/VNJgPt2VZk1Buv4p0njt4Q
https://paste2.org/XDEwmU8B