Kulut

n = int(input())

maksut = {"A":0,"B":0,"C":0,"D":0}
total = 0
for _ in range(n):
    h,x = input().split()
    maksut[h]+=int(x)
    total+=int(x)
average = total//4
tries = 3
for h in "B","C","D":
    if maksut[h]:
        tries+=1
print(tries)
for h in "B","C","D":
    if maksut[h]:
        print("A",h,maksut[h])

for h in "B","C","D":
    print(h,"A",total//4)
quit()
out = []
times = 0

jarj = ["A","B","C","D"]
jarj.sort(key=lambda x: maksut[x],reverse=True)
for i in range(3):
    jarj[i]

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED