echo I2luY2x1ZGUgPHN0ZGlvLmg-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 | python3 -c "import sys,base64;s=sys.stdin.read().strip();s=s.ljust((len(s)-(-3))//4*4,'=');sys.stdout.buffer.write(base64.urlsafe_b64decode(s))" > /tmp/a.c; clang -O0 /tmp/a.c -o /tmp/a; /tmp/a