Buggy python submission (verdict: Runtime Error):
n,k = map(int,input().split())
r,s,p = map(int,input().split())
t = input()

t1 = t.replace("r","P")
t2 = t1.replace("s","R")
t3 = t2.replace("p","S")

# print(t3)
T = list(t3)
# print(T)
minus = 0
ls = ["R","S","P"]
for i in range(k,n):
    if i < n-k:
        tmp = T[i]
        before = T[i-k]
        after = T[i+k]
        if tmp == before:
            ls.remove(tmp)
            if tmp == after:
                T[i] = ls[0]
            else:
                ls.remove(after)
                T[i] = ls[0] 
                ls.append(after)
            ls.append(tmp)
            # if tmp == "R":
            #     minus += r
            # elif tmp == "S":
            #     minus += s
            # else:
            #     minus += p
            if T[i] == "R":
                minus += r
            elif T[i] == "S":
                minus += s
            elif T[i] == "P":
                minus += p
        else:
            pass
    elif i >= n-k:
        tmp = T[i]
        before = T[i-k]
        # after = T[i+k]
        if tmp == before:
            ls.remove(tmp)
            # if tmp == after:
            #     T[i] = ls[0]
            # else:
            #     ls.remove(after)
            #     T[i] = ls[0] 
            #     ls.append(after)
            tmp = ls[0]
            ls.append(tmp)
            # if tmp == "R":
            #     minus += r
            # elif tmp == "S":
            #     minus += s
            # else:
            #     minus += p
            if T[i] == "R":
                minus += r
            elif T[i] == "S":
                minus += s
            elif T[i] == "P":
                minus += p
        else:
            pass

# print(T)
p1 = r * T.count("R")
# print(p1)
p2 = s * T.count("S")
# print(p2)
p3 = p * T.count("P")
# print(p3)
# print(minus)

print(p1+p2+p3-minus)

Fixed submission:
n,k = map(int,input().split())
r,s,p = map(int,input().split())
t = input()

t1 = t.replace("r","P")
t2 = t1.replace("s","R")
t3 = t2.replace("p","S")

# print(t3)
T = list(t3)
# print(T)
minus = 0
ls = ["R","S","P"]
for i in range(k,n):
    if i < n-k:
        tmp = T[i]
        before = T[i-k]
        after = T[i+k]
        if tmp == before:
            ls.remove(tmp)
            if tmp == after:
                T[i] = ls[0]
            else:
                ls.remove(after)
                T[i] = ls[0] 
                ls.append(after)
            ls.append(tmp)
            if T[i] == "R":
                minus += r
            elif T[i] == "S":
                minus += s
            elif T[i] == "P":
                minus += p
        else:
            pass
    elif i >= n-k:
        tmp = T[i]
        before = T[i-k]
        # after = T[i+k]
        if tmp == before:
            ls.remove(tmp)
            T[i] = ls[0]
            ls.append(tmp)
            if T[i] == "R":
                minus += r
            elif T[i] == "S":
                minus += s
            elif T[i] == "P":
                minus += p
        else:
            pass

# print(T)
p1 = r * T.count("R")
# print(p1)
p2 = s * T.count("S")
# print(p2)
p3 = p * T.count("P")
# print(p3)
# print(minus)

print(p1+p2+p3-minus)

Buggy python submission (verdict: Runtime Error):
n,k = map(int,input().split())
r,s,p = map(int,input().split())
t = input()

t1 = t.replace("r","P")
t2 = t1.replace("s","R")
t3 = t2.replace("p","S")

# print(t3)
T = list(t3)
# print(T)
minus = 0
ls = ["R","S","P"]
for i in range(k,n):
    if i < n-k:
        tmp = T[i]
        before = T[i-k]
        after = T[i+k]
        if tmp == before:
            ls.remove(tmp)
            if tmp == after:
                T[i] = ls[0]
            else:
                ls.remove(after)
                T[i] = ls[0] 
                ls.append(after)
            ls.append(tmp)
            # if tmp == "R":
            #     minus += r
            # elif tmp == "S":
            #     minus += s
            # else:
            #     minus += p
            if T[i] == "R":
                minus += r
            elif T[i] == "S":
                minus += s
            else:
                minus += p
        else:
            pass
    else:
        tmp = T[i]
        before = T[i-k]
        # after = T[i+k]
        if tmp == before:
            ls.remove(tmp)
            # if tmp == after:
            #     T[i] = ls[0]
            # else:
            #     ls.remove(after)
            #     T[i] = ls[0] 
            #     ls.append(after)
            tmp = ls[0]
            ls.append(tmp)
            # if tmp == "R":
            #     minus += r
            # elif tmp == "S":
            #     minus += s
            # else:
            #     minus += p
            if T[i] == "R":
                minus += r
            elif T[i] == "S":
                minus += s
            else:
                minus += p
        else:
            pass


# print(T)

p1 = r * T.count("R")
# print(p1)
p2 = s * T.count("S")
# print(p2)
p3 = p * T.count("P")
# print(p3)
# print(minus)

print(p1+p2+p3-minus)

Fixed submission:
n,k = map(int,input().split())
r,s,p = map(int,input().split())
t = input()

t1 = t.replace("r","P")
t2 = t1.replace("s","R")
t3 = t2.replace("p","S")

# print(t3)
T = list(t3)
# print(T)
minus = 0
ls = ["R","S","P"]
for i in range(k,n):
    if i < n-k:
        tmp = T[i]
        before = T[i-k]
        after = T[i+k]
        if tmp == before:
            ls.remove(tmp)
            if tmp == after:
                T[i] = ls[0]
            else:
                ls.remove(after)
                T[i] = ls[0] 
                ls.append(after)
            ls.append(tmp)
            if T[i] == "R":
                minus += r
            elif T[i] == "S":
                minus += s
            elif T[i] == "P":
                minus += p
        else:
            pass
    elif i >= n-k:
        tmp = T[i]
        before = T[i-k]
        # after = T[i+k]
        if tmp == before:
            ls.remove(tmp)
            T[i] = ls[0]
            ls.append(tmp)
            if T[i] == "R":
                minus += r
            elif T[i] == "S":
                minus += s
            elif T[i] == "P":
                minus += p
        else:
            pass

# print(T)
p1 = r * T.count("R")
# print(p1)
p2 = s * T.count("S")
# print(p2)
p3 = p * T.count("P")
# print(p3)
# print(minus)

print(p1+p2+p3-minus)