from array import*
arr=['i',[ ]]
N=int(input("Enter the numbers of elements:"))
print("enter the elements : ")
for i in range(N):
    arr.append(int(input()))
key=int(input("Enter the key element :"))
flag='False'
for i in range(N):
    if (arr[i]==key):
        flag='True'
        print(key," is found at location ",i-1)
        break
    else:
        print("key is not found")
        break