CSC2023 - [Crypto] - Student Life

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Challenge Description

A person of age 64 gave coins to a boy of age 32 to buy 16 pens. Suddenly he dropped all 13 coins on the floor. He counted those coins 35 times.

R1UyQ0FOREJFQTJUSUlCWE1JUURPTUJBR1kzQ0FORERFQTJXTUlCVkdJUURJT0pBR1UzQ0FOTEdFQTJUUUlCVUdZUURNTlJBR1UyU0FOTEdFQTNURUlCVEc0UURLWlJBR1JTU0FOUldFQTJEU0lCV0dJUURHTUpBR1EyU0FOWllFQTJXTUlCV01VUURFTUpBR1JSQ0FOSlpFQTJXTUlCVEhBUURPTVJBR1JRU0FOSldFQTNHQ0lCWE1RPT09PT09

Solution

The challenge description gives solution that from which base you have to convert into which base. Also counting leads to rotation

64 -> base64

32 -> base32

16 -> hex

13 -> ROT13

35 -> ROT13 35 rotations

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