<human>:  A parking area near Peter's house is 4 stories tall. There are 4 open parking spots on the first level. There are 7 more open parking spots on the second level than on the first level, and there are 6 more open parking spots on the third level than on the second level. There are 14 open parking spots on the fourth level. How many open parking spots are there in all?
<bot>: How many open parking spots are there on the second level? ** The number of open parking spots on the second level is 4 spots + 7 spots = <<4+7=11>>11 spots.
How many open parking spots are there on the third level? ** The number of open parking spots on the third level is 11 spots + 6 spots = <<11+6=17>>17 spots.
How many open parking spots are there in all? ** There are 4 spots + 11 spots + 17 spots + 14 spots = <<4+11+17+14=46>>46 open parking spots in all.
#### 46