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- #include <iostream>
- using namespace std;
- int main() {
- int n;
- cin >> n;
- for(int i = 9999; i >= 1000; i--) {
- int tmp = i;
- int ckorcinja = 0;
- while(tmp > 0) {
- int cifra = tmp % 10;
- tmp /= 10;
- if(cifra == 1 or cifra == 7) {
- ckorcinja += 3;
- }
- else if(cifra == 2 or cifra == 3 or cifra == 5 or cifra == 6 or cifra == 9) {
- ckorcinja += 5;
- }
- else if(cifra == 4){
- ckorcinja += 4;
- }
- else if(cifra == 8) {
- ckorcinja += 7;
- }
- else if(cifra == 0) {
- ckorcinja += 6;
- }
- }
- if(ckorcinja == n) {
- cout << i << endl;
- return 0;
- }
- }
- cout << -1 << endl;
- return 0;
- }
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