#include<stdio.h>

int main(){ 
  intn,i,hasOdd=0;
  scanf("%d",&arr[i]);
  if(arr[i]%2!=0){
     hasOdd=1; //At least one
odd exists
    }
}
if(!hasOdd){
   printf("invalid input\n");
   return 0;
  }
  
  for(i=0;<n;i++){
  if(arr[i]%2!=0){
     printf("1");
    }else{
      printf("%d",arr[i]);
    }
}

return 0;

}