The number of yellow blocks is 18 blocks + 7 blocks = <<18+7=25>>25 blocks.
The number of blue blocks is 18 blocks + 14 blocks = <<18+14=32>>32 blocks.
The total number of red, yellow, and blue blocks is 18 blocks + 25 blocks + 32 blocks = <<18+25+32=75>>75 blocks.
#### 75