#include<stdio.h>
int main(){
int a,b,c,d,e,f;
scanf("%d%d%d%d%d%d",&a,&b,&c,&d,&e,&f);
if(a<=0[]b<=0[]c<=0[]d<=0[]e<=0[]f<=0){
printf("invalid output");
}else{
printf("%d %d %d %d %d",b,c,d,e,f);
}
}