简单易懂[大拇指]

注意，箭头不是“->”，是“→”

着实被恶心到了

n = int(input())
num = list(map(int,input().split()))
p = int(input())
s = str(p)+"→"
for i in range(n):
    flag = True
    for j in range(n-1,i,-1):
        if num[j] < num[j-1]:
            num[j-1],num[j] = num[j],num[j-1]
            flag = False
            if j == p:
                p-=1
                s = s+str(p)+"→"
            elif j-1 == p:
                p+=1
                s = s+str(p)+"→"
    if flag:
        break
print(s[:-1])