echo I2luY2x1ZGUgPHN0ZGlvLmg-CiNpbmNsdWRlIDxzdGRsaWIuaD4KI2luY2x1ZGUgPG1hdGguaD4KI2RlZmluZSBSIDcKI2RlZmluZSBDIDExCiNkZWZpbmUgTiA3NwppbnQgd2luc1tOXVs5XSx3bFtOXSxjd1tOXVs5XSxjbFtOXSxhW05dLHNbTl0sYmVzdEFbTl07CnVuc2lnbmVkIGxvbmcgbG9uZyBzZWVkPTk4NzY1NDMyMTsKdW5zaWduZWQgaW50IHJuZCgpe3NlZWRePXNlZWQ8PDEzO3NlZWRePXNlZWQ-Pjc7c2VlZF49c2VlZDw8MTc7cmV0dXJuICh1bnNpZ25lZCBpbnQpKHNlZWQ-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-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-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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 -O3 /tmp/a.c -o /tmp/a -lm; /tmp/a