#include <stdio.h>
int main(void) {
int i,a[10],j[10];
for(i=0;i<10;i++){
}
for(i=0;i<10;i++){
if(a[i]%2==0){
j[i]=a[i]*2;
}
else{
j[i]=-1;
}
}
for(i=0;i<10;i++){
if(j[i]!=-1){
}
return 0;
}
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