#include <stdio.h>

int top=-1;
int size;
int arr[20];
int arr2[20];
void enqueue(int num){
    if(top == size-1){
        return;
    }
    else{
        arr[++top] = num;
    }
}

void dequeue(){
    int i
}

void display(){
    int i,itr=0;
    for(i=0;i<=top;i++){
        if(arr[i] < 0)
           arr2[itr++] = arr[i]; 
    }
    for(i=0;i<=top;i++){
        if(arr[i] >= 0)
            arr2[itr++] = arr[i];
    }
    
}

int main(){
    int ind,num;
    scanf("%d",&size);
    if(size<=0){
        printf("Invalid input");
        return 0;
    }
    for(ind=0;ind<size;ind++){
        scanf("%d",&num);
        enqueue(num);
    }
    display();
    return 0;
}