import collections,sys,math,functools,operator,itertools,bisect,heapq,decimal,string,time,random
#sys.setrecursionlimit(10**9)
#https://github.com/shakayami/ACL-for-python/blob/master/lazysegtree.py
class lazy_segtree():
    def update(self,k):self.d[k]=self.op(self.d[2*k],self.d[2*k+1])
    def all_apply(self,k,f):
        self.d[k]=self.mapping(f,self.d[k])
        if (k<self.size):self.lz[k]=self.composition(f,self.lz[k])
    def push(self,k):
        self.all_apply(2*k,self.lz[k])
        self.all_apply(2*k+1,self.lz[k])
        self.lz[k]=self.identity
    def __init__(self,V,OP,E,MAPPING,COMPOSITION,ID):
        self.n=len(V)
        self.log=(self.n-1).bit_length()
        self.size=1<<self.log
        self.d=[E for i in range(2*self.size)]
        self.lz=[ID for i in range(self.size)]
        self.e=E
        self.op=OP
        self.mapping=MAPPING
        self.composition=COMPOSITION
        self.identity=ID
        for i in range(self.n):self.d[self.size+i]=V[i]
        for i in range(self.size-1,0,-1):self.update(i)
    def set(self,p,x):
        assert 0<=p and p<self.n
        p+=self.size
        for i in range(self.log,0,-1):self.push(p>>i)
        self.d[p]=x
        for i in range(1,self.log+1):self.update(p>>i)
    def get(self,p):
        assert 0<=p and p<self.n
        p+=self.size
        for i in range(self.log,0,-1):self.push(p>>i)
        return self.d[p]
    def prod(self,l,r):
        assert 0<=l and l<=r and r<=self.n
        if l==r:return self.e
        l+=self.size
        r+=self.size
        for i in range(self.log,0,-1):
            if (((l>>i)<<i)!=l):self.push(l>>i)
            if (((r>>i)<<i)!=r):self.push(r>>i)
        sml,smr=self.e,self.e
        while(l<r):
            if l&1:
                sml=self.op(sml,self.d[l])
                l+=1
            if r&1:
                r-=1
                smr=self.op(self.d[r],smr)
            l>>=1
            r>>=1
        return self.op(sml,smr)
    def all_prod(self):return self.d[1]
    def apply_point(self,p,f):
        assert 0<=p and p<self.n
        p+=self.size
        for i in range(self.log,0,-1):self.push(p>>i)
        self.d[p]=self.mapping(f,self.d[p])
        for i in range(1,self.log+1):self.update(p>>i)
    def apply(self,l,r,f):
        assert 0<=l and l<=r and r<=self.n
        if l==r:return
        l+=self.size
        r+=self.size
        for i in range(self.log,0,-1):
            if (((l>>i)<<i)!=l):self.push(l>>i)
            if (((r>>i)<<i)!=r):self.push((r-1)>>i)
        l2,r2=l,r
        while(l<r):
            if (l&1):
                self.all_apply(l,f)
                l+=1
            if (r&1):
                r-=1
                self.all_apply(r,f)
            l>>=1
            r>>=1
        l,r=l2,r2
        for i in range(1,self.log+1):
            if (((l>>i)<<i)!=l):self.update(l>>i)
            if (((r>>i)<<i)!=r):self.update((r-1)>>i)
    def max_right(self,l,g):
        assert 0<=l and l<=self.n
        assert g(self.e)
        if l==self.n:return self.n
        l+=self.size
        for i in range(self.log,0,-1):self.push(l>>i)
        sm=self.e
        while(1):
            while(l%2==0):l>>=1
            if not(g(self.op(sm,self.d[l]))):
                while(l<self.size):
                    self.push(l)
                    l=(2*l)
                    if (g(self.op(sm,self.d[l]))):
                        sm=self.op(sm,self.d[l])
                        l+=1
                return l-self.size
            sm=self.op(sm,self.d[l])
            l+=1
            if (l&-l)==l:break
        return self.n
    def min_left(self,r,g):
        assert (0<=r and r<=self.n)
        assert g(self.e)
        if r==0:return 0
        r+=self.size
        for i in range(self.log,0,-1):self.push((r-1)>>i)
        sm=self.e
        while(1):
            r-=1
            while(r>1 and (r%2)):r>>=1
            if not(g(self.op(self.d[r],sm))):
                while(r<self.size):
                    self.push(r)
                    r=(2*r+1)
                    if g(self.op(self.d[r],sm)):
                        sm=self.op(self.d[r],sm)
                        r-=1
                return r+1-self.size
            sm=self.op(self.d[r],sm)
            if (r&-r)==r:break
        return 0
mod = 998244353
#区間加算・区間最小値取得 lst = lazy_segtree([],min,10**18,operator.add,operator.add,0)
#区間加算・区間最大値取得 lst = lazy_segtree([],max,-10**18,operator.add,operator.add,0)
#区間加算・区間和取得 lst = lazy_segtree([(alist[i],1) for i in range(n)],lambda x,y:((x[0]+y[0])%mod,x[1]+y[1]),(0,0),lambda x,y:((y[0]+x*y[1])%mod,y[1]),operator.add,0)
#区間変更・区間最小値取得 lst = lazy_segtree([],min,10**18,lambda x,y:y if x == 10**18 else x,lambda x,y:y if x == 10**18 else x,10**18)
#区間変更・区間最大値取得 lst = lazy_segtree([],max,-10**18,lambda x,y:y if x == -10**18 else x,lambda x,y:y if x == -10**18 else x,-10**18)
#区間変更・区間和取得 lst = lazy_segtree([(alist[i],1) for i in range(n)],lambda x,y:((x[0]+y[0])%mod,x[1]+y[1]),(0,0),lambda x,y:(y[1]*x,y[1]) if x != 10**18 else y,lambda x,y:y if x == 10**18 else x,10**18)

def op(x,y):
    return
#xはlazy, yはd
def mapping(x,y):
    return
#yが作用してからxが作用する
def composition(x,y):
    return
#sys.set_int_max_str_digits(0)
input = sys.stdin.readline
#n = int(input())
#
mod = 2**61-1
#alist = []
#s = input()
n,l,q = map(int,input().split())
lst = [lazy_segtree([0 for i in range(l)],min,10**18,lambda x,y:(x+y)%mod,lambda x,y:(x+y)%mod,0) for fjdfb in range(n)]
base = random.randint(100,10000)

s = []
base_pow = [pow(base,i,mod) for i in range(1000+10)]
for i in range(n):
    t = list(input().rstrip())
    s.append(t)
    temp = 0
    for j in range(l):
        temp += (ord(t[j]) - ord('a')) * base_pow[j]
        temp %= mod
        lst[i].set(j,temp)

for _ in range(q):
    query = list(input().split())

    if query[0] == '1':
        t,k,c,d = query
        k = int(k)
        k -= 1
        for i in range(n):
            if s[i][k] == c:
                lst[i].apply(k,l,-((ord(c) - ord('a')) * base_pow[k]))
                lst[i].apply(k,l,(ord(d) - ord('a')) * base_pow[k])
                s[i][k] = d
    else:
        e,t = query
        t = t.rstrip()
        t = list(t)
        ans = 0
        temp = 0
        for i in range(len(t)):
            temp += (ord(t[i]) - ord('a')) * base_pow[i]
            temp %= mod
        for i in range(n):
         
            if lst[i].get(len(t)-1) == temp:
                ans += 1
        print(ans)