codeforce - Slightly Decreasing Permutations

#include<bits/stdc++.h>
using namespace std;
#define fastread()(ios_base::sync_with_stdio(false),cin.tie(NULL));
int main()
{
    fastread()
    int n,k;
    cin>>n>>k;
    for(int i=0;i<k;i++)printf("%d ",n-i);
    printf("1");
    for(int i=2;i<=n-k;i++)printf(" %d",i);
    printf("\n");
    return 0;
}