1768. Merge Strings Alternately

class Solution {
public:
    string mergeAlternately(string word1, string word2) {
        string s;
        int p=(word1.size()+word2.size());
         int j=0;
         
    for(int i=0; i<p; i++)
    {   
        if(i<word1.size()){
        s+=word1[i];
        }
        if(i<word2.size()){
            s+=word2[i];
            
        }

    }

      return s;  
    }
};