package main

import . "fmt"
import . "slices"

func main() {
	var n,k int
	var s string
	Scan(&n,&k,&s)
	b:=[]byte(s)
	x,y:=b[:k-1],b[k-1:]
	if (n+k)%2==0 {
		Reverse(x)
	}
	Println(string(y)+string(x))
}


func jikken() {
	for n:=20;n<40;n+=17 {
		for k:=2;k<=n;k++ {
			sol(n,k)
		}
	}
}

func sol(n,k int) {
	Println("n=",n,",k=",k)
	
	a:=make([]int,n)
	for i:=range a {
		a[i]=i
	}
	
	for e:=0;e+k-1<n;e++ {
		for i,j:=e,e+k-1;i<j;i,j=i+1,j-1 {
			a[i],a[j]=a[j],a[i]
		}
	}
	
	for _,v:=range a {
		Print(" ",v)
	}
	Println()
	
	for i,v:=range a {
		Print(" ",v-i)
	}
	Println()
}