The term close supporting fire is identified in base64 scheme by the sequence Y2xvc2Ugc3VwcG9ydGluZyBmaXJl, while the MD5 signature is equal to 12ce0ecb5e520f9b29766d9700b1e23d. The ASCII encoding of close supporting fire in hexadecimal notation is 636c6f736520737570706f7274696e672066697265.