Task 1 done

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+#!raku
+
+#
+# Perl Weekly Challenge 207
+# Task 1
+#
+# See <https://perlweeklychallenge.org/blog/perl-weekly-challenge-207/>
+#
+
+sub MAIN( *@words ) {
+    my @keyboard = qw/ qwertyuiop asdfghjkl zxcvbnm /;
+
+    for @words -> $current-word {
+	for @keyboard -> $current-row {
+	    my $found = 0;
+	    for $current-word.lc.comb -> $current-letter {
+		$found++ if ( $current-row ~~ /$current-letter/  );
+	    }
+
+	    $current-word.say if $current-word.chars == $found;
+	}
+    }
+
+}