identification division.
program-id. prog.
environment division.
data division.
working-storage section.
77 n pic Z9.
77 i pic Z9.
77 r pic Z9.
procedure division.
display 'Hello, World!'
accept n
move 0 to i
PERFORM until 30 greater than i
compute r = 2**n
display r
ACCEPT n
end-perform.
stop run.
aWRlbnRpZmljYXRpb24gZGl2aXNpb24uCnByb2dyYW0taWQuIHByb2cuCmVudmlyb25tZW50IGRpdmlzaW9uLgpkYXRhIGRpdmlzaW9uLgp3b3JraW5nLXN0b3JhZ2Ugc2VjdGlvbi4KICA3NyBuIHBpYyBaOS4KICA3NyBpIHBpYyBaOS4KICA3NyByIHBpYyBaOS4KcHJvY2VkdXJlIGRpdmlzaW9uLgogIGRpc3BsYXkgJ0hlbGxvLCBXb3JsZCEnCiAgYWNjZXB0IG4KICBtb3ZlIDAgdG8gaQoJCVBFUkZPUk0gdW50aWwgMzAgZ3JlYXRlciB0aGFuIGkKICAgIGNvbXB1dGUgciA9IDIqKm4KICAgIGRpc3BsYXkgcgoJCQlBQ0NFUFQgbgogIGVuZC1wZXJmb3JtLgogIHN0b3AgcnVuLgo=