import sys, random
input = lambda : sys.stdin.readline().rstrip()


write = lambda x: sys.stdout.write(x+"\n"); writef = lambda x: print("{:.12f}".format(x))
debug = lambda x: sys.stderr.write(x+"\n")
YES="Yes"; NO="No"; pans = lambda v: print(YES if v else NO); INF=10**18
LI = lambda v=0: list(map(lambda i: int(i)-v, input().split())); II=lambda : int(input()); SI=lambda : [ord(c)-ord("a") for c in input()]
def debug(_l_):
    for s in _l_.split():
        print(f"{s}={eval(s)}", end=" ")
    print()
def dlist(*l, fill=0):
    if len(l)==1:
        return [fill]*l[0]
    ll = l[1:]
    return [dlist(*ll, fill=fill) for _ in range(l[0])]

n = II()
vs = [[], []]
for _ in range(n):
    c,x,y = LI()
    if x<y:
        vs[0].append((c,x,y))
    else:
        vs[1].append((n-c+1,y,x))
def sub(cxy):
    m = len(cxy)
    cxy.sort(key=lambda item: -item[0])
    # 基本は x, 間に合えば y
    h = []
    from heapq import heappop as hpp, heappush as hp
    i = 0
    res = 0
    for d in range(1,m+1)[::-1]:
        while i<m and cxy[i][0]>=d:
            c,x,y = cxy[i]
            hp(h, -(y-x))
            i += 1
        if h:
            res += -hpp(h)
    res += sum(item[1] for item in cxy)
    # print(cxy, res)
    return res
ans = sub(vs[0]) + sub(vs[1])
print(ans)