#include <iostream>
using namespace std;
int main() {
long long t=0,m=0,n=0;
char x[1000001];
cin >> t;
while(t--)
{
cin >> x;
//find n;
int j;
for(j = 0; x[j]!='\0'; j++);
n = j;
for(m = n; m > 0 ; m--)
{
long long sum = 0;
for(int i = 0; i < m; i++)
{
if(x[i]=='<')sum++;
else if(x[i]=='>') sum--;
//cout << x[i] << " " << sum << " ";
if(sum < 0) m--;
}
if(sum == 0) {cout << m << endl; m = -10;}
}
if(m != -11) cout << 0 << endl;
}
return 0;
}
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