n,m,q = map(int,input().split())
matrix = []##定义矩阵
for i in range(n):
matrix.append(list(map(int,input().split())))##在矩阵中添加元素
s = [[0 for i in range(m+1)] for i in range(n+1)]##定义和矩阵
for i in range(n):
for j in range(m):
s[i+1][j+1]=matrix[i][j]+s[i][j+1]+s[i+1][j]-s[i][j]##将每个坐标点内数字的和添加进矩阵
while q!=0:
x1,y1,x2,y2 = map(int,input().split())##循环输入x1,y1,x2,y2
print(s[x2][y2]+s[x1-1][y1-1]-s[x2][y1-1]-s[x1-1][y2])##根据公式求结果
q-=1