题解 | #第一次放学#

n,m,k=map(int,input().split())
a=sorted(Counter(map(int,input().split())).values())
for i in range(len(a)):
    if a[i]>=k:
        a[i]=a[i]-k
        break
    else:
        k=k-a[i]
print(a[-1])