diff --git a/2/1/solution.sh b/2/1/solution.sh
index 0fc753b..f4e8fa2 100755
--- a/2/1/solution.sh
+++ b/2/1/solution.sh
@@ -31,7 +31,6 @@ main ()
       possible_ids+=($id)
     fi
   done < input.txt
-  echo "${possible_ids[@]}"
   declare -i sum=0
   for id in "${possible_ids[@]}"; do
     (( sum+=id ))
diff --git a/4/1/solution.sh b/4/1/solution.sh
index 9e2ecb0..014d160 100755
--- a/4/1/solution.sh
+++ b/4/1/solution.sh
@@ -15,7 +15,6 @@ main ()
   while read -r line; do
     declare -a winning=() mine=() mywinning=()
     declare -i card_sum=0
-    echo "$line"
     stripped=$(sed 's/Card\s\{1,3\}[0-9]\{1,3\}: //' <<< "${line}")
     winning+=($(cut -d '|' -f 1 <<< "${stripped}"))
     mine+=($(cut -d '|' -f 2 <<< "${stripped}"))
@@ -27,7 +26,6 @@ main ()
         fi
       done
     done
-    echo mywwinning ${mywinning[@]}
     for number in "${mywinning[@]}"; do
       if [[ card_sum -eq 0 ]]; then
         card_sum=$((card_sum+1))
@@ -35,9 +33,7 @@ main ()
         card_sum=$((card_sum*2))
       fi
     done
-    echo "card sum: $card_sum"
     sum=$((sum+card_sum))
-    echo "sum: ${sum}"
   done < input.txt
   echo "${sum}"
 }
diff --git a/4/2/solution.sh b/4/2/solution.sh
index 1baff29..d0e34e3 100755
--- a/4/2/solution.sh
+++ b/4/2/solution.sh
@@ -14,7 +14,6 @@ CARDS="${#INPUT[@]}"
 
 run_cards ()
 {
-  # Receives space separated list of cards I have.
   for ((x=1; x<=CARDS; x++)); do
     declare -a winning=() mine=()
     declare -i matching=0
@@ -45,7 +44,6 @@ main ()
   done
   run_cards "${hand[@]}"
   for ((z=1; z<=CARDS; z++)); do
-    echo "card $z: ${hand[$z]}"
     sum=$((sum+${hand[$z]}))
   done
   echo "${sum}"