def fin(s):
    cnt = 0
    for i in range(2, len(s)):
        if (s[i-2:i+1]=="sos"):
            cnt += 1
    return cnt

p = int(input())
kkksc03 = 0 ; chen_zhe=[]
for i in range(p):
    name = input()
    cnt = fin(input())
    if (kkksc03<cnt):
        chen_zhe = [name]
        kkksc03 = cnt
    elif (kkksc03==cnt):
        chen_zhe += [name]


if (kkksc03):
   for n in chen_zhe:
       print(n,end=" ")
   print("\n",kkksc03,sep="")