Buggy python submission (verdict: Runtime Error):
N, K = map(int, input().split())
R, S, P = map(int, input().split())
T = list(input())

ans = 0
hands = []
for i in range(N):
    if i < K:
        # グー
        if T[i] == 'r':
            ans += P
            hands.append('p')
        # チョキ
        elif T[i] == 's':
            ans += R
            hands.append('r')
        # パー
        else:
            ans += S
            hands.append('s')
    else:
        if T[i] == 'r':
            if hands[i-K] != 'p':
                ans += P
                hands.append('p')
            else:
                if i + K <= N:
                    hands.append(list(set('rsp') - set([T[i+K], hands[i-K]]))[0])
        # チョキ
        elif T[i] == 's':
            if hands[i-K] != 'r':
                ans += R
                hands.append('r')
            else:
                if i + K <= N:
                    hands.append(list(set('rsp') - set([T[i+K], hands[i-K]]))[0])
        # パー
        else:
            if hands[i-K] != 's':
                ans += S
                hands.append('s')
            else:
                if i + K <= N:
                    hands.append(list(set('rsp') - set([T[i+K], hands[i-K]]))[0])

print(ans)


Fixed submission:
N, K = map(int, input().split())
R, S, P = map(int, input().split())
T = list(input())

ans = 0
hands = []
for i in range(N):
    if i < K:
        # グー
        if T[i] == 'r':
            ans += P
            hands.append('p')
        # チョキ
        elif T[i] == 's':
            ans += R
            hands.append('r')
        # パー
        else:
            ans += S
            hands.append('s')
    else:
        if T[i] == 'r':
            if hands[i-K] != 'p':
                ans += P
                hands.append('p')
            else:
                if i + K <= N - 1:
                    hands.append('-')
                else:
                    hands.append('-')
        # チョキ
        elif T[i] == 's':
            if hands[i-K] != 'r':
                ans += R
                hands.append('r')
            else:
                if i + K <= N - 1:
                    hands.append('-')
                else:
                    hands.append('-')
        # パー
        else:
            if hands[i-K] != 's':
                ans += S
                hands.append('s')
            else:
                if i + K <= N - 1:
                    hands.append('-')
                else:
                    hands.append('-')

print(ans)

Buggy python submission (verdict: Runtime Error):
N, K = map(int, input().split())
R, S, P = map(int, input().split())
T = list(input())

ans = 0
hands = []
for i in range(N):
    if i <= K - 1:
        # グー
        if T[i] == 'r':
            ans += P
            hands.append('p')
        # チョキ
        elif T[i] == 's':
            ans += R
            hands.append('r')
        # パー
        else:
            ans += S
            hands.append('s')
    else:
        if T[i] == 'r':
            if hands[i-K] != 'p':
                ans += P
                hands.append('p')
            else:
                if i + K <= N:
                    hands.append(list(set('rsp') - set([T[i+K], hands[i-K]]))[0])
        # チョキ
        elif T[i] == 's':
            if hands[i-K] != 'r':
                ans += R
                hands.append('r')
            else:
                if i + K <= N:
                    hands.append(list(set('rsp') - set([T[i+K], hands[i-K]]))[0])
        # パー
        else:
            if hands[i-K] != 's':
                ans += S
                hands.append('s')
            else:
                if i + K <= N:
                    hands.append(list(set('rsp') - set([T[i+K], hands[i-K]]))[0])
print(ans)


Fixed submission:
N, K = map(int, input().split())
R, S, P = map(int, input().split())
T = list(input())

ans = 0
hands = []
for i in range(N):
    if i < K:
        # グー
        if T[i] == 'r':
            ans += P
            hands.append('p')
        # チョキ
        elif T[i] == 's':
            ans += R
            hands.append('r')
        # パー
        else:
            ans += S
            hands.append('s')
    else:
        if T[i] == 'r':
            if hands[i-K] != 'p':
                ans += P
                hands.append('p')
            else:
                if i + K <= N - 1:
                    hands.append('-')
                else:
                    hands.append('-')
        # チョキ
        elif T[i] == 's':
            if hands[i-K] != 'r':
                ans += R
                hands.append('r')
            else:
                if i + K <= N - 1:
                    hands.append('-')
                else:
                    hands.append('-')
        # パー
        else:
            if hands[i-K] != 's':
                ans += S
                hands.append('s')
            else:
                if i + K <= N - 1:
                    hands.append('-')
                else:
                    hands.append('-')

print(ans)

Buggy python submission (verdict: Runtime Error):
N, K = map(int, input().split())
R, S, P = map(int, input().split())
T = list(input())

ans = 0
hands = []
for i in range(N):
    if i <= K - 1:
        # グー
        if T[i] == 'r':
            ans += P
            hands.append('p')
        # チョキ
        elif T[i] == 's':
            ans += R
            hands.append('r')
        # パー
        else:
            ans += S
            hands.append('s')
    else:
        if T[i] == 'r':
            if hands[i-K] != 'p':
                ans += P
                hands.append('p')
            else:
                if i + K - 1 < N:
                    hands.append(list(set('rsp') - set([T[i+K], hands[i-K]]))[0])
        # チョキ
        elif T[i] == 's':
            if hands[i-K] != 'r':
                ans += R
                hands.append('r')
            else:
                if i + K - 1 < N:
                    hands.append(list(set('rsp') - set([T[i+K], hands[i-K]]))[0])
        # パー
        else:
            if hands[i-K] != 's':
                ans += S
                hands.append('s')
            else:
                if i + K - 1 < N:
                    hands.append(list(set('rsp') - set([T[i+K], hands[i-K]]))[0])
print(ans)


Fixed submission:
N, K = map(int, input().split())
R, S, P = map(int, input().split())
T = list(input())

ans = 0
hands = []
for i in range(N):
    if i < K:
        # グー
        if T[i] == 'r':
            ans += P
            hands.append('p')
        # チョキ
        elif T[i] == 's':
            ans += R
            hands.append('r')
        # パー
        else:
            ans += S
            hands.append('s')
    else:
        if T[i] == 'r':
            if hands[i-K] != 'p':
                ans += P
                hands.append('p')
            else:
                if i + K <= N - 1:
                    hands.append('-')
                else:
                    hands.append('-')
        # チョキ
        elif T[i] == 's':
            if hands[i-K] != 'r':
                ans += R
                hands.append('r')
            else:
                if i + K <= N - 1:
                    hands.append('-')
                else:
                    hands.append('-')
        # パー
        else:
            if hands[i-K] != 's':
                ans += S
                hands.append('s')
            else:
                if i + K <= N - 1:
                    hands.append('-')
                else:
                    hands.append('-')

print(ans)