trigan && ()

#include <bits/stdc++.h>

using namespace std;

string input = "19-56*cos(45+16/98*20-49)*3";
string output = "";

stack <char> oper;
int i, length = 1;
bool dell=0;

void out(){
    while(oper.size()!=0){
        if(oper.top()=='(' || oper.top()=='s' || oper.top()=='c' || oper.top()=='t') break;
        else{
            output=output+oper.top()+"\n";
            oper.pop();
            length+=2;
        }
    }
}

void out_with(){
    while(oper.size()!=0){
        if(oper.top()=='('){
            oper.pop();
            break;
        }else if(oper.top()=='s'){
            output=output+"\n"+"sin";
            oper.pop();
            length++;
            break;
        }else if(oper.top()=='c'){
            output=output+"\n"+"cos";
            oper.pop();
            length++;
            break;
        }else if(oper.top()=='t'){
            output=output+"\n"+"tan";
            oper.pop();
            length++;
            break;
        }else{
            output=output+"\n"+oper.top();
            oper.pop();
            length+=2;
        }
    }
}

#define sin input[i]=='s' && input[i+1]=='i' && input[i+2]=='n' && input[i+3]=='('
#define cos input[i]=='c' && input[i+1]=='o' && input[i+2]=='s' && input[i+3]=='('
#define tan input[i]=='t' && input[i+1]=='a' && input[i+2]=='n' && input[i+3]=='('
#define sko input[i]=='('
#define skc input[i]==')'
#define low input[i]=='+' || input[i]=='-'
#define high input[i]=='*' ||input[i]=='/'
#define num (input[i]>='0' && input[i]<='9')

int main(){
    for(i=0;i<input.size();i++){
        if(!num && dell){
            output=output+"\n"+'/';
            dell=0;
        }
        if(low){
            output+="\n";
            out();
            oper.push(input[i]);
        }else if(input[i]=='*'){
            oper.push(input[i]);
            output+="\n";
        }else if(input[i]=='/'){
            dell=1;
            output+="\n";
            length+=2;
        }else if(sko){     // open (
            oper.push(input[i]);
        }else if(sin){
            oper.push('s');
            i+3;
        }else if(cos){
            oper.push('c');
            i+=3;
        }else if(tan){
            oper.push('t');
            i+=3;
        }else if(skc){   // close )
            out_with();
        }else{
            output=output+input[i];
        }
    }
    output+="\n";
    out();
    cout<<input<<"\n\n";
    cout<<output<<endl<<endl<<length;
    return 0;
}