#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
ll balik(ll K, ll F) {
while (K > 0) {
F += K % 10;
K /= 10;
}
if (F > 9) return balik(F, 0);
else return F;
}
int main() {
ll N;
cin >> N;
ll A;
ll B;
for (ll i = 1; i <= N; i++) {
ll ans = 0;
cin >> A >> B;
int X = balik(A, 0);
int coba = B % 9;
int apalah = (B - A)/9;
// int bagi = apalah/45;
// ans += bagi*45;
for (ll i = 0; i <= coba; i++) {
cout << ans << " ";
if (X > 9) X = 1;
ans += X;
X += 1;
}
ans += apalah*45;
cout << ans << endl;
}
}
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