local number = io.read("*line")
number = number
if number == 0 or number == nil then
    print(number) 
elseif number < 1e3 then
    print(number)
elseif number < 1e6 then
    local Ans = tostring(number / 1e3) .. 'K'
    print("Your number is " .. Ans)
elseif number < 1e9 then
    local Ans = tostring(number / 1e6) .. 'M'
    print("Your number is " .. Ans)
elseif number < 1e12 then
    local Ans = tostring(number / 1e9) .. 'B'
    print("Your number is " .. Ans)
elseif number < 1e6 then
    local Ans = tostring(number / 1e12) .. 'T'
    print("Your number is " .. Ans)
elseif number < 1e9 then
    local Ans = tostring(number / 1e15) .. 'Qd'
    print("Your number is " .. Ans)
elseif number < 1e12 then
    local Ans = tostring(number / 1e18) .. 'Qn'
    print("Your number is " .. Ans)
elseif number < 1e6 then
    local Ans = tostring(number / 1e21) .. 'Sx'
    print("Your number is " .. Ans)
elseif number < 1e9 then
    local Ans = tostring(number / 1e24) .. 'Sp'
    print("Your number is " .. Ans)
elseif number < 1e12 then
    local Ans = tostring(number / 1e27) .. 'Oc'
    print("Your number is " .. Ans)
else 
    return('Nil')
end