English:

When we’re together, I can tell just by looking in your eyes (uh uh)
When I come back home, I don’t know what to say

Everything I say is still so awkward
Your texts are still too difficult
I open the dictionary and open by open, want to know, want to know, I don’t know

I’m sending 143
I still can’t express my feelings with words whoa oh oh
Sending 143, it’s not just a simple game of numbers whoa oh oh
I love you 143, you are 486
Sending 143, we’re so different
Sending 143, it’s still hard
It’s not just a simple game of number 143

My heart pounds at your one word, I stutter, what am I saying?
I look bad because I keep getting it wrong, please know my heart, know my heart

Everything I say is still so awkward
Your texts are still too difficult
I open the dictionary and open by open, want to know, want to know, I don’t know

I’m sending 143
I still can’t express my feelings with words whoa oh oh
Sending 143, it’s not just a simple game of numbers whoa oh oh
I love you 143, you are 486
Sending 143, we’re so different
Sending 143, it’s still hard
It’s not just a simple game of number 143

My heart doesn't respond
To this endless scary movie
What to do? i regret it, why do i keep repeating this drama?
Even though we don't say it, why do we believe in our relationship?
Cause you're 143, since i'm 486
Gonna love you, are you gonna love me?

I’m sending 143
I can’t express my heart, whoa oh oh
Sending 143, it’s not just a simple game of numbers whoa oh oh
I love you 143, you are 486
Sending 143, we’re so different
Sending 143, it’s still hard
It’s not just a simple game of number 143

Whoa 143 whoa 143 yeah yeah yeah
It’s not just a simple game of number 143

Korean:

Seoro hamkkeil ttaemyeon nunbitman bwado ara ara ara (uh-uh-)
Jibeuro doraomyeon mworago halji molla molla molla

Ajigeun seotulleo naui modeun maldeuri
Ajigeun eoryeowo neoui geu munjadeuri
Sajeoneul pyeolchigo hanassik want to know want to know i dont know

I’m sending 1-4-3 geuljaron ajik jeondari an dwae woah oh oh
Sending 1-4-3 dansunhan sutjanoriga anya woah oh oh
I love you 1-4-3 neoneun 4-8-6
Sending 1-4-3 neomu dareuji
Sending 1-4-3 ajik eoryeopji
Dansunhan sutjanoriga anya 1-4-3

Du-du-dugeungeoryeo mal hanmadiedo deo-deo-deodeum mworae mwo-mworae
Jakku teullineun naega meosiga eobseo dapdaphae nae mam arajwo arajwo

Ajigeun seotulleo naui modeun maldeuri
Ajigeun eoryeowo neoui geu munjadeuri
Sajeoneul pyeolchigo hanassik want to know want to know i dont know

I’m sending 1-4-3 geuljaron ajik jeondari an dwae woah oh oh
Sending 1-4-3 dansunhan sutjanoriga anya woah oh oh
I love you 1-4-3 neoneun 4-8-6
Sending 1-4-3 neomu dareuji
Sending 1-4-3 ajik eoryeopji
Dansunhan sutjanoriga anya 1-4-3

Nae mam jeonhal andwaeji
Kkeuchi eomneun museoun yeonghwa
Eotteoke huhoe na wae gyesok banbokdoeneun deurama
Mareul anhaedo uri seoro wae ssaineun mitji
Cause you're 143, since i'm 486
Gonna love you, are you gonna love me?

I’m sending 1-4-3 nae mameul jeondalhal suga eobseo woah oh oh
Sending 1-4-3 dansunhan sutjanoriga anya woah oh oh
I love you 1-4-3 neoneun 4-8-6
Sending 1-4-3 neomu dareuji
Sending 1-4-3 ajik eoryeopji
Dansunhan sutjanoriga anya 1-4-3

Woah- 1-4-3 woah- 1-4-3 yey-yey-yeah
Dansunhan sutjanoriga anya 1-4-3