strlst 14fcdbe5b6 til: ue4 added missing exercise 3 lat temu
..
ue1 0abf0a91b3 til: ue1 new changes 3 lat temu
ue2 d2f3e74d85 til: final corrections 3 lat temu
ue3 4c85e87585 til: added ue3 3 lat temu
ue4 14fcdbe5b6 til: ue4 added missing exercise 3 lat temu