for _ in range(int(input())):
R,C = map(int,input().split())
A = [];x = []
for i in range(R):
L = input()
if len(x)< 1 and "#" in L:
x.append(L.index("#"))
A.append(L.count("#"))
print(A.index(max(A))+1,x[0]+1)450A - Jzzhu and Children | 546A - Soldier and Bananas |
32B - Borze | 1651B - Prove Him Wrong |
381A - Sereja and Dima | 41A - Translation |
1559A - Mocha and Math | 832A - Sasha and Sticks |
292B - Network Topology | 1339A - Filling Diamonds |
910A - The Way to Home | 617A - Elephant |
48A - Rock-paper-scissors | 294A - Shaass and Oskols |
1213A - Chips Moving | 490A - Team Olympiad |
233A - Perfect Permutation | 1360A - Minimal Square |
467A - George and Accommodation | 893C - Rumor |
227B - Effective Approach | 1534B - Histogram Ugliness |
1611B - Team Composition Programmers and Mathematicians | 110A - Nearly Lucky Number |
1220B - Multiplication Table | 1644A - Doors and Keys |
1644B - Anti-Fibonacci Permutation | 1610A - Anti Light's Cell Guessing |
349B - Color the Fence | 144A - Arrival of the General |