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#include <bits/stdc++.h>
using namespace std;
int main(){
int diff[200005] = {0};
int res[200005] = {0};
int a,b;
while(cin >> a >> b && (a != 0 || b != 0)){
diff[a]++;
diff[b+1]--;
}
res[0] = diff[0];
for(int i = 1 ; i <= 200000 ; i++){
res[i] = res[i-1] + diff[i];
}
while(cin >> a >> b && (a != 0 || b != 0)){
for(int i = a ; i <= b ; i++){
cout << res[i] << '\n';
}
}
return 0;
}
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