commit cb549c598814bccd616369508897785b26d97348
Author: mehbark <terezi@pyrope.net>
Date:   Wed Nov 13 15:06:01 2024 -0500

    seven sevens

diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..a7cdf07
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,109 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..8559881
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "pearls"
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+edition = "2021"
+
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+sha2 = "0.10.8"
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..32586ef
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,116 @@
+use itertools::Itertools;
+use sha2::{Digest, Sha256};
+
+// we could be smart with prefixes
+fn main() {
+    let choices = [
+        vec![
+            "",
+            "they say ",
+            "they say that ",
+            "it's true! ",
+            "it's true: ",
+            "did you know ",
+            "did you know that ",
+        ],
+        vec!["the "],
+        vec![
+            "sha",
+            "Sha",
+            "SHA",
+            "sha-",
+            "SHA-",
+            "Sha-",
+            "sha ",
+            "Sha ",
+            "SHA ",
+            "Secure Hash Algorithm ",
+            "secure hash algorithm ",
+        ],
+        vec![
+            "256",
+            "2 5 6",
+            "two five six",
+            "two-fifty-six",
+            "two hundred and fifty six",
+        ],
+        vec![" "],
+        vec!["hash", "digest"],
+        vec![" of "],
+        vec!["this sentence", "this message", "this piece of digitext"],
+        vec![" has "],
+        vec![
+            "seven",
+            "7",
+            "7 (seven)",
+            "seven (7)",
+            "7!",
+            "7(!)",
+            "seven!",
+            "seven(!)",
+            "7!!",
+            "7(!!)",
+            "seven!!",
+            "seven(!!)",
+            "7!!!",
+            "7(!!!)",
+            "seven!!!",
+            "seven(!!!)",
+            "7!!!!!!!",
+            "7(!!!!!!!)",
+            "seven!!!!!!!",
+            "seven(!!!!!!!)",
+        ],
+        vec![" "],
+        vec![
+            "7s",
+            "sevens",
+            "7s!",
+            "7s(!)",
+            "sevens!",
+            "sevens(!)",
+            "7s!!",
+            "7s(!!)",
+            "sevens!!",
+            "sevens(!!)",
+            "7s!!!",
+            "7s(!!!)",
+            "sevens!!!",
+            "sevens(!!!)",
+            "7s!!!!!!!",
+            "7s(!!!!!!!)",
+            "sevens!!!!!!!",
+            "sevens(!!!!!!!)",
+        ],
+        vec![" "],
+        vec![
+            "in a row",
+            "in one group",
+            "all together",
+            "all together :)",
+        ],
+        vec!["! ", ". ", " "],
+        vec![
+            "isn't that",
+            "i think that's",
+            "that's",
+            "that is",
+            "i think that is",
+            "that fact is",
+        ],
+        vec![" "],
+        vec!["somewhat ", "pretty ", "quite ", "very ", "decently ", ""],
+        vec!["fun", "nice", "sweet", "pleasant", "cool", "interesting"],
+    ];
+    for selection in choices.into_iter().multi_cartesian_product() {
+        let mut hasher = Sha256::new();
+        for choice in &selection {
+            hasher.update(choice);
+        }
+        let digest = hasher.finalize();
+        if format!("{digest:x}").contains("7777777") {
+            println!("{}", selection.join(""));
+            println!("{digest:x}");
+        }
+    }
+}