#include <iostream>
using namespace std;
int main() {
int t, largestsum=0;
cin >> t;
for (int i = 0; i < t; i++) {
int n, sum = 0, current =0, lastsum =0;
cin >> n;
for (int j = 0; j < n; j++) {
int a; cin >> a;
if (current <= a) {
current = a;
sum++;
} else {
lastsum = sum;
current = a;
sum = 1;
}
if (lastsum >= sum && largestsum < lastsum) {
largestsum = lastsum;
}
else if (lastsum <= sum && largestsum < sum) {
largestsum = sum;
}
}
}
cout << largestsum;
return 0;
}
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