N,M,Q=map(int,input().split())

ANS=[[0]*7 for i in range(N)]
S=[list(map(int,list(input().strip()))) for i in range(N)]
E=[[] for i in range(N)]

for i in range(M):
    x,y=map(int,input().split())
    x-=1
    y-=1
    E[x].append(y)
    E[y].append(x)
    
# UnionFind

Group = [i for i in range(N*7)] # グループ分け
Nodes = [1]*(N*7) # 各グループのノードの数

def find(x):
    while Group[x] != x:
        x=Group[x]
    return x

def Union(x,y):
    if find(x) != find(y):
        if Nodes[find(x)] < Nodes[find(y)]:
            
            Nodes[find(y)] += Nodes[find(x)]
            Nodes[find(x)] = 0
            Group[find(x)] = find(y)
            
        else:
            Nodes[find(x)] += Nodes[find(y)]
            Nodes[find(y)] = 0
            Group[find(y)] = find(x)


for i in range(N):
    for j in range(7):
        if S[i][j-1]==1 and S[i][j]==1:
            Union(i*7+(j-1)%7,i*7+j)

for i in range(N):
    for to in E[i]:
        for j in range(7):
            if S[i][j]==1 and S[to][j]==1:
                Union(i*7+j,to*7+j)

for i in range(Q):
    q,x,y=map(int,input().split())
    if q==1:
        x-=1
        y-=1
        S[x][y]=1

        Q=[x*7+y]

        while Q:
            town=Q.pop()
            x,y=divmod(town,7)
            town=find(town)

            if S[x][(y+1)%7]==1 and find(x*7+(y+1)%7)!=town:
                Union(x*7+y,x*7+(y+1)%7)
                Q.append(x*7+(y+1)%7)
            if S[x][(y-1)%7]==1 and find(x*7+(y-1)%7)!=town:
                Union(x*7+y,x*7+(y-1)%7)
                Q.append(x*7+(y-1)%7)

            for to in E[x]:
                if S[to][y]==1 and find(to*7+y)!=town:
                    Union(x*7+y,to*7+y)
                    Q.append(to*7+y)
        
    else:
        x-=1
        print(Nodes[find(x*7)])