# Hamming Distance

from timeit import default_timer as timer

def R(string,i,j):
    prev = []
    next = []
    rev  = []
    for x in range(i-1):
        prev.append(string[x])
    for x in range(j,len(string)):
        next.append(string[x])
    for x in range(i-1,j):
        rev.append(string[x])
    rev.reverse()
    reversed_string = "".join(str(x) for x in prev) + "".join(str(x) for x in rev) + "".join(str(x) for x in next)
    return reversed_string 

def W(string,i,j):
    for i in range(i-1,j):
        print(string[i],end="")
    print()

def S(string,i1,j1,i2,j2):
    prev    = []
    middle  = []
    next    = []
    string1 = []
    string2 = []
    for x in range(i1-1):
        prev.append(string[x])
    for x in range(i1-1,j1):
        string1.append(string[x])
    for x in range(j1,i2-1):
        middle.append(string[x])
    for x in range(i2-1,j2):
        string2.append(string[x])
    for x in range(j2,len(string)):
        next.append(string[x])

    swapped_string = "".join(str(x) for x in prev) + "".join(str(x) for x in string2) + "".join(str(x) for x in middle) + "".join(str(x) for x in string1) + "".join(str(x) for x in next)
    return swapped_string

def C(string,i,j,ch):
    prev    = []
    next    = []
    equal   = []
    for x in range(i-1):
        prev.append(string[x])
    for x in range(j,len(string)):
        next.append(string[x])
    for x in range(i-1,j):
        equal.append(ch)
    changed_string = "".join(str(x) for x in prev) + "".join(str(x) for x in equal) + "".join(str(x) for x in next)
    return changed_string

def H(string,i,j,length):
    distance    = 0
    first  = string[i-1:(i-1)+length]
    second = string[j-1:(j-1)+length]
    for i in range(len(first)):
        if first[i] != second[i]:
            distance += 1
    return distance

string_size     = int(input())
string          = input()
command_size    = int(input())
commands        = []
for i in range(command_size):
    command = input()
    command_list = command.split(" ")
    commands.append(command_list)

if string_size == len(string):
    if command_size == len(commands):
        for i in commands:
            if i[0] == "R":
                string = R(string,int(i[1]),int(i[2]))
            if i[0] == "W":
                W(string,int(i[1]),int(i[2]))
            if i[0] == "S":
                string = S(string,int(i[1]),int(i[2]),int(i[3]),int(i[4]))
            if i[0] == "C":
                string = C(string,int(i[1]),int(i[2]),i[3])
            if i[0] == "H":
                distance = H(string,int(i[1]),int(i[2]),int(i[3]))
                print(distance)