580A - Kefa and First Steps - CodeForces Solution

n=int(input())
list1=list(map(int, input().split()))
list1.append(0)
list2=[]
for i in range(0,n,1):
    if list1[i]<=list1[i+1]:
        list2.append("x")
    else:
        list2.append("0")

str1=("".join(list2))

list3=list(str1.split("0"))
count=1
for i in list3:
    if len(i)>=count:
        count=len(i)+1
print(count)