easy approach
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \n\n# Complexity\n- Time 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\n\n# Complexity\n- Time complexity:\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```\nclass Solution {\n    public String decodeCiphertext(String encodedText, int rows) {\n        int len=encodedText.length();\n        int col=len/rows;\n         StringBuilder sb = new StringBuilder();\n        for(int i=0;i<col;i++){\n            for(int j=i;j<len;j=j+col+1){\n                 sb.append(encodedText.charAt(j));\n            }\n        }\n       return sb.toString().stripTrailing();\n       \n    }\n}\n```
['Java']