#include<bits/stdc++.h>
using namespace std;
int main()
{
int t;
cin>>t;
while(t--)
{
string abc;
cin>>abc;
list <char> lol;
for(int j=0;j<abc.size();j++)
{
if(lol.back()=='<' && abc[j]=='>')
lol.pop_back();
else
lol.push_back(abc[j]);
}
cout<<abc.size()-lol.size()<<endl;
}
return 0;
}
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