Thread: adding a char at the end of a number

so, ive managed to add a number at the end of a char

Code:

char chara[30] = "";
char charb[30] = "test ";


//charb = "testcom";


itoa(numa,chara,30);


strcat(charb,chara);


printf("%s\n",charb);

now, I want to add a char at the end of a number, any help?