#include<stdio.h>
int main(){
    int n;
    scanf("%d",&n);
    if(n<0){
        printf("Invalid input");
        return 0;
    }
    int stack[100],temp[100];
    int top=-1,temptop=-1;
    for(int i=0;i<n;i++){
        scanf("%d",&stack[++top]):
    }
    while(top!=-1){
        int curr=stack[top--];
        while(temptop!=-1&&temp[temptop]>cuee){
            stack[++top]=temp[temptop--];
        }
        temp[++temptop]=curr;
    }
    while(temptop!=-1){
        printf("%d",temp[temptop--]);
    }
    return 0;
    }