TEL8 - Telefone.cpp

#include <stdio.h>
#include <string.h>

int main(void){
int n;
char tel[1000];
scanf("%s", tel);
n = strlen(tel);
for(int i=0; i<n;i++){

if(tel[i]=='A' || tel[i]=='B' || tel[i]=='C'){
tel[i]='2';
}else if(tel[i]=='D' || tel[i]=='E' || tel[i]=='F'){
tel[i]='3';
}else if(tel[i]=='G' || tel[i]=='H' || tel[i]=='I'){
tel[i]='4';
}else if(tel[i]=='J' || tel[i]=='K' || tel[i]=='L'){
tel[i]='5';
}else if(tel[i]=='M' || tel[i]=='N' || tel[i]=='O'){
tel[i]='6';
}else if(tel[i]=='P' || tel[i]=='Q' || tel[i]=='R'|| tel[i]=='S'){
tel[i]='7';
}else if(tel[i]=='T' || tel[i]=='U' || tel[i]=='V'){
tel[i]='8';
}else if(tel[i]=='W' || tel[i]=='X' || tel[i]=='Y'|| tel[i]=='Z'){
tel[i]='9';
}
}
printf("%s", tel);
return 0;
}