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- #include <iostream>
- using namespace std;
- int main()
- {
- long long int nzenk;
- long long skaic=1, rez=0, x=494, x2=9, x3=550, x4=0;
- long long tikrinam; //kintam. patikrinimui
- cin>>nzenk;
- if(3>=nzenk){
- for (long long int i=0; i<nzenk; i++){
- skaic=skaic*10; //skaiciuoja kiek yra skaiciu
- }
- tikrinam=skaic; //cikle lyginam musu patikrinima su skaiciu kieki
- skaic=skaic/10;
- do{
- rez=rez+skaic;
- skaic++;}
- while(skaic<tikrinam);
- cout<<rez<<endl;} //pabaigem cikla
- else{
- nzenk=nzenk-3;
- cout<<x;
- for (long int i=0; i<nzenk; i++){
- cout<<x2;} //isvedam 9
- cout<<x3;
- for(long int i=0; i<nzenk; i++){
- cout<<x4;} //isvedam 0
- }return 0;
- }
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