=======================================================================++++++++++++ = *= + =****====****************=**=*********=====***** + =====++++==== == + =++++++++++++==== =========================== = =++++++++++++++++====++++++++++++++++= = =++++++++++++++++++++++++++++++++++++= * = ====================================== ======== ** === = ++++++++++++++++++++++++++= ======== =******= === *** = =========================== = == == ******= *** = =* == = = == ============= = =============================== = = ====== = +++++++++++++++++++++++++++++++======= = === = ====================================== = === = = = === ** **= = ***** = ======== **=+ = ================ **=++ = =+++++++++++++== ****=+++ = =+++++++++====*= ========= = ==========* = === = = 0 === * = ================================================ ** =========== =+ = * ===================== =++ = * ======= * =+++ = ===== ====++++++= =====================++ =* =+++++++++= *=+ += * * ======= =++++++++++==================== **=+ ++= ================ =+++++++++++++================= *=++ +++= =++++++++++++=*** * * * * **=+++ ++++= ==================================== ===== ======= +++++= 21 = * * = +++++==============================================================================