import re


def main():
    s=input()
    s=s+' '
    if (s.find('grep')!=-1):
        start=s.find('\'')+1
        end=s.rfind('\'')
        st=s[start:end]
        end=end+1
        while (s[end] == ' '):
            end = end + 1
        start=end
        while (s[end] != ' '):
            end = end + 1
        filename=s[start:end]
        try:
            file = open(filename, 'r', encoding='utf8')
        except PermissionError:
            return
        if ((s.find('-i')!=-1)and (s.find('-m')!=-1)and (s.find('-n')!=-1)):
            num = int(s[s.find('-m') + 3])
            count = 0
            linecount = 1
            for line in file:
                if ((re.search(st.lower(), line.lower()) != None) and (count < num)):
                    strcount = str(linecount)
                    print(strcount + ':' + line)
                    count = count + 1
                linecount = linecount + 1
        elif ((s.find('-i')!=-1)and (s.find('-m')!=-1)):
            num = int(s[s.find('-m') + 3])
            count = 0
            for line in file:
                if ((re.search(st.lower(), line.lower()) != None) and (count < num)):
                    print(line)
                    count = count + 1
        elif ((s.find('-m')!=-1)and (s.find('-n')!=-1)):
            num = int(s[s.find('-m') + 3])
            count = 0
            linecount = 1
            for line in file:
                if ((re.search(st, line) != None) and (count < num)):
                    strcount = str(linecount)
                    print(strcount + ':' + line)
                    count = count + 1
                linecount = linecount + 1
        elif ((s.find('-i')!=-1)and (s.find('-n')!=-1)):
            linecount = 1
            for line in file:
                if (re.search(st.lower(), line.lower()) != None):
                    strcount = str(linecount)
                    print(strcount + ':' + line)
                linecount = linecount + 1
        elif (s.find('-i')!=-1):
            for line in file:
                if (re.search(st.lower(), line.lower()) != None):
                    print(line)
        elif (s.find('-m')!=-1):
            num=int(s[s.find('-m')+3])
            count=0
            for line in file:
                if ((re.search(st,line)!=None)and(count<num)):
                    print(line)
                    count=count+1
        elif (s.find('-n')!=-1):
            linecount=1
            for line in file:
                if (re.search(st,line)!=None):
                    strcount=str(linecount)
                    print(strcount+':'+line)
                linecount = linecount + 1
        else:
            for line in file:
                if (re.search(st,line)!=None):
                    print(line)

main()