#include <stdio.h>

int main() {
    int n;
    scanf("%d", &n);
    int arr[n];
    int i;
    for(int f=0; f<n; f++)
    {
        scanf("%d", &arr[f]);
    }
    int y=0;


    for(i=0; i<n; i++) //바퀴 반복
    {
        for(int j=0; j<n-1-i; j++) //비교활동 반복
        {
            if(arr[j] > arr[j+1])
            {
                int t; // 임시 저장
                t=arr[j];
                arr[j] = arr[j+1];
                arr[j+1] = t;
                y=i;
            }
        }
    } 
        printf("%d", y+1);
    return 0;
}

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