Main.cc: In function 'int main()':
Main.cc:8:12: error: unable to find character literal operator 'operator""and' with 'char' argument
if(a[i]>='0'and a[i]<='9'){
^
Main.cc:8:19: error: expected ')' before 'a'
if(a[i]>='0'and a[i]<='9'){
^