array = [5,4,3,2,1]
totalDif=0

for i in range(0,len(array)-1):
    totalDif+=array[i]-array[i+1]
    
consDif = totalDif/(len(array)-1)
count=0

for k in range(0,len(array)-1):
    if(array[i]-array[i+1]!= consDif):
        count+=1
        


if(count>0):
    print("Array is not monotone")
else:
    if(consDif>0):
        print("Array is decreasing monotone")
    elif(consDif<0):
        print("Array is increasing monotone")