import bisect

def main():
    import sys
    input = sys.stdin.read
    data = input().split()
    ptr = 0
    N = int(data[ptr]); ptr +=1
    M = int(data[ptr]); ptr +=1
    Q = int(data[ptr]); ptr +=1
    
    submissions = []
    sorted_acs = []
    problem_submissions = [[] for _ in range(M+1)]  # 1-based indexing
    prefix_wa = [[] for _ in range(M+1)]
    ac_indices = [[] for _ in range(M+1)]
    
    for idx in range(N):
        p = int(data[ptr]); ptr +=1
        s = data[ptr]; ptr +=1
        submissions.append( (p, s) )
        problem_submissions[p].append(idx)
        if s == 'AC':
            sorted_acs.append(idx)
            ac_indices[p].append(idx)
    
    sorted_acs.sort()
    
    # Precompute prefix_wa for each problem
    for p in range(1, M+1):
        subs = problem_submissions[p]
        prefix = [0]
        cnt = 0
        for i in subs:
            if submissions[i][1] == 'WA':
                cnt += 1
            prefix.append(cnt)
        prefix_wa[p] = prefix
    
    # Process each query
    output = []
    for _ in range(Q):
        L = int(data[ptr]); ptr +=1
        R = int(data[ptr]); ptr +=1
        # Convert to 0-based
        L0 = L -1
        R0 = R -1
        left = bisect.bisect_left(sorted_acs, L0)
        right_idx = bisect.bisect_right(sorted_acs, R0)
        acs_in_query = sorted_acs[left:right_idx]
        
        processed = set()
        count = 0
        penalty = 0
        
        for s in acs_in_query:
            p = submissions[s][0]
            if p not in processed:
                processed.add(p)
                subs_p = problem_submissions[p]
                # Find submissions >= L0 and < s
                left_sub = bisect.bisect_left(subs_p, L0)
                # Find first submission >= s is the position where s is found
                right_sub = bisect.bisect_left(subs_p, s)
                
                # Number of WA in [left_sub, right_sub)
                wa = prefix_wa[p][right_sub] - prefix_wa[p][left_sub]
                penalty += wa
                count += 1
        
        output.append(f"{count} {penalty}")
    
    print('\n'.join(output))

if __name__ == "__main__":
    main()