def largestRectangle(h):
    # Write your code here
    maxx=0
    for i in range(len(h)):
        j=i
        while(j<len(h) and h[j]>=h[i]):
            j+=1
        k=(j-i)
        j=i
        while(j>-1 and h[j]>=h[i]):
            j-=1
        k+=(i-1-j)
        maxx=max(maxx,h[i]*k)
        
    return maxx