import sys
sys.setrecursionlimit(10 ** 6)

N = int(input())
A = list(map(int,input().split()))

n = 1
while n < N:
    n <<= 1
dat = [[0] * 2 for _ in range(2 * n - 1)]
lazy = [0] * (2 * n - 1)

for i in range(N):
    j = i + n -1
    dat[j][0] = A[i]
    dat[j][1] = A[i] ** 2
def make():
    for k in reversed(range(n-1)):
        dat[k][0] = dat[k*2+1][0] + dat[k*2+2][0]
        dat[k][1] = dat[k*2+1][1] + dat[k*2+2][1]
make()

def eval(k,l,r):
    if lazy[k] == 0:return
    if k < n-1:
        lazy[k*2+1] += lazy[k]
        lazy[k*2+2] += lazy[k]
    x = lazy[k]
    dat[k][1] += 2 *  dat[k][0] * x + x * x * (r-l)
    dat[k][0] += x * (r-l)
    lazy[k] = 0
def update(a,b,x,k=0,l=0,r=n):
    eval(k,l,r)
    if r <= a or b <= l:return
    if a <= l and r <= b:
        lazy[k] = x
        eval(k,l,r)
        return
    update(a,b,x,k*2+1,l,(l+r)//2)
    update(a,b,x,k*2+2,(l+r)//2,r)
    dat[k][0] =dat[k*2+1][0]+dat[k*2+2][0]
    dat[k][1] = dat[k*2+1][1]+dat[k*2+2][1]
def query(a,b,k=0,l=0,r=n):
    eval(k,l,r)
    if r <= a or b <= l:return 0
    if a <= l and r <= b:
        return dat[k][1]
    v1 = query(a,b,k*2+1,l,(l+r)//2)
    v2 = query(a,b,k*2+2,(l+r)//2,r)
    return v1+v2
Q = int(input())

for _ in range(Q):
    l = list(map(int,input().split()))
    if l[0] == 1:
        update(l[1]-1,l[2],l[3])
    else:
        print(query(l[1]-1,l[2]))
"""
def write():
    for i in range(N):
        print(query(i,i+1))
def write2():
    for i in range(N):
        query(i,i+1)
        print(dat[i+n-1][0],end = " ")
    print()
for _ in range(Q):
    l = list(map(int,input().split()))
    if l[0] == 1:update(l[1]-1,l[2],l[3])
    else:
        write2()
"""