Problem:
List of Top 3 Hills

There is a data which provides heights (in meter) of mountains. The data is only for ten mountains.

Write a program which prints heights of the top three mountains in descending order.

Input

Height of mountain 1
Height of mountain 2
Height of mountain 3
.
.
Height of mountain 10

Constraints

0 ≤ height of mountain (integer) ≤ 10,000

Output

Height of the 1st mountain
Height of the 2nd mountain
Height of the 3rd mountain

Sample Input 1

1819
2003
876
2840
1723
1673
3776
2848
1592
922

Output for the Sample Input 1

3776
2848
2840

Sample Input 2

100
200
300
400
500
600
700
800
900
900

Output for the Sample Input 2

900
900
800

Solution in C (judge verdict: Time Limit Exceeded)

#include<stdio.h>
int main()
{
    int a[10],i,j,k,t;
    while(1)
    {
    for(i=0;i<10;i++)
    {
        scanf("%d",&a[i]);
    }
    for(j=0;j<10;j++)
        for(k=0;k<9;k++)
        {
            if(a[k]<a[k+1])
            {
                t=a[k];
                a[k]=a[k+1];
                a[k+1]=t;
            }
        }
    for(i=0;i<3;i++)
        printf("%d\n",a[i]);
    }
    return 0;
}