#include<stdio.h>
int main(){
int tablica[11];
int mnozniki[]={1,3,7,9,1,3,7,9,1,3,1};
int suma =0;
for(int i=0;i<11;++i){
tablica[i]*=mnozniki[i];
suma+=tablica[i];
}
if(suma
%10)printf("Nieprawidłowy"); return 0;
}
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