<human>:  Leonard and his brother Michael bought presents for their father. Leonard bought a wallet at $50 and two pairs of sneakers at $100 each pair, while Michael bought a backpack at $100 and two pairs of jeans at $50 each pair. How much did they spend in all?
<bot>: How much did Michael buy? ** Two pairs of sneakers cost 2 x $100 = $<<2*100=200>>200.
How much did Leonard spend? ** So, Leonard spent $50 + $200 = $<<50+200=250>>250.
How much did Michael buy? ** Two pairs of jeans cost 2 x $50 = $<<2*50=100>>100.
How much did Michael spend? ** Thus, Michael spent $100 + $100 = $<<100+100=200>>200.
How much did they spend in all? ** Therefore, they spent a total of $250 + $200 = $<<250+200=450>>450 in all.
#### 450