Draw a Merkle Patricia trie to represent the following list of transactions $($key$,$ value$)$

$($a$5542,1$ETH$),($a$5272,0\mathrm{.}5$ETH$),($a$5522,0\mathrm{.}2$ETH$),($a$6521,1\mathrm{.}1$ETH$)$